首页 > 最新文献

European Journal of Mechanics B-fluids最新文献

英文 中文
A comprehensive comparison of passive flow controls on the wind turbine blade lift and drag performances: A CFD approach 全面比较被动流控制对风力涡轮机叶片升力和阻力性能的影响:CFD 方法
IF 2.5 3区 工程技术 Q2 MECHANICS Pub Date : 2024-07-14 DOI: 10.1016/j.euromechflu.2024.07.009
Mohd Hafiz Ab Satar, N.A. Razak, Mohd Safie Abdullah, Farzad Ismal

Flow control techniques used on wind turbines have been shown to significantly increase energy generation when compared to traditional wind turbines. Although various flow control methods have been introduced in the last two decades, the comparison between these methods is still the least conducted by researchers. Therefore, the present study aims to evaluate the performance of an airfoil utilizing both single and dual passive flow control methods, such as droop, flap, microcylinder, slot, and spoiler with optimal parameters. In this study, a numerical model was developed and applied with the same boundary conditions as those in the experiment. The results of the developed numerical simulation were then validated with experimental and other numerical studies. Mosaic mesh was utilized and the results were compared with conventional mesh types. Even though the mosaic mesh requires a lower number of computational elements, it demonstrated higher computational accuracy when compared to hexcore, polyhedra and tetrahedral type meshes. After obtaining an accurate numerical model, parametric studies were then conducted. The findings mainly highlighted that the airfoil with a microcylinder consistently generated higher performance than droop, flap, spoiler, slot and conventional airfoil. The mean relative improvement was about 2.6%. In an extensive study, eight combinations of flow controls were proposed and evaluated. The highest performances were achieved with the combination of microcylinder and flap, up to 27.9% and the combination of microcylinder and slot, reaching up to 50.2%, for low and high AOAs, respectively.

与传统风力涡轮机相比,风力涡轮机上使用的流量控制技术可显著提高发电量。尽管在过去二十年中已经引入了各种流量控制方法,但研究人员对这些方法进行的比较仍然最少。因此,本研究旨在评估采用单一和双重被动流量控制方法(如垂流、襟翼、微气缸、槽和扰流板)的机翼的性能,并给出最佳参数。本研究开发并应用了一个数值模型,其边界条件与实验中的相同。然后将所开发的数值模拟结果与实验和其他数值研究结果进行了验证。采用了镶嵌网格,并将结果与传统网格类型进行了比较。尽管马赛克网格所需的计算元素数量较少,但与六核、多面体和四面体网格相比,其计算精度更高。在获得精确的数值模型后,又进行了参数研究。研究结果主要表明,与垂尾、襟翼、扰流板、插槽和传统机翼相比,微气缸机翼始终能产生更高的性能。平均相对改进幅度约为 2.6%。在一项广泛的研究中,提出并评估了八种流量控制组合。微气缸和襟翼的组合性能最高,达到 27.9%;微气缸和槽的组合性能最高,达到 50.2%,分别适用于低和高 AOA。
{"title":"A comprehensive comparison of passive flow controls on the wind turbine blade lift and drag performances: A CFD approach","authors":"Mohd Hafiz Ab Satar,&nbsp;N.A. Razak,&nbsp;Mohd Safie Abdullah,&nbsp;Farzad Ismal","doi":"10.1016/j.euromechflu.2024.07.009","DOIUrl":"10.1016/j.euromechflu.2024.07.009","url":null,"abstract":"<div><p>Flow control techniques used on wind turbines have been shown to significantly increase energy generation when compared to traditional wind turbines. Although various flow control methods have been introduced in the last two decades, the comparison between these methods is still the least conducted by researchers. Therefore, the present study aims to evaluate the performance of an airfoil utilizing both single and dual passive flow control methods, such as droop, flap, microcylinder, slot, and spoiler with optimal parameters. In this study, a numerical model was developed and applied with the same boundary conditions as those in the experiment. The results of the developed numerical simulation were then validated with experimental and other numerical studies. Mosaic mesh was utilized and the results were compared with conventional mesh types. Even though the mosaic mesh requires a lower number of computational elements, it demonstrated higher computational accuracy when compared to hexcore, polyhedra and tetrahedral type meshes. After obtaining an accurate numerical model, parametric studies were then conducted. The findings mainly highlighted that the airfoil with a microcylinder consistently generated higher performance than droop, flap, spoiler, slot and conventional airfoil. The mean relative improvement was about 2.6%. In an extensive study, eight combinations of flow controls were proposed and evaluated. The highest performances were achieved with the combination of microcylinder and flap, up to 27.9% and the combination of microcylinder and slot, reaching up to 50.2%, for low and high AOAs, respectively.</p></div>","PeriodicalId":11985,"journal":{"name":"European Journal of Mechanics B-fluids","volume":"108 ","pages":"Pages 119-133"},"PeriodicalIF":2.5,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141693985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamics and applications of finite-size fibre-like objects in turbulent flows 湍流中有限尺寸纤维状物体的动力学及其应用
IF 2.5 3区 工程技术 Q2 MECHANICS Pub Date : 2024-07-11 DOI: 10.1016/j.euromechflu.2024.07.007
Alessandro Chiarini , Marco Edoardo Rosti , Andrea Mazzino

This review delves into the dynamics of fibre-laden turbulent flows, a field that has garnered substantial attention due to its relevance in both natural and engineering contexts. The focus here is mainly on finite-size fibres, those exceeding the Kolmogorov scale, diverging from the commonly studied smaller ones. The study synthesises current understanding of the behaviour and organisation of both rigid and flexible finite-size fibres within turbulent flows, underscoring the added complexity these anisotropic particles introduce compared to their spherical counterparts. The influence of the length, the curvature and the inertia on the dynamics of rigid and flexible fibres is addressed. Fibre-based novel experimental methods, such as Fibre Tracking Velocimetry, are highlighted. Ultimately, this paper seeks to provide a clearer picture of the intricate dynamics at play in fibre-laden turbulent flows and their practical implications in various fields.

这篇综述深入探讨了含纤维湍流的动力学,由于其在自然和工程领域的相关性,这一领域已引起了广泛关注。这里的重点主要是有限尺寸纤维,即超过科尔莫戈罗夫尺度的纤维,与通常研究的较小尺寸纤维有所不同。这项研究综合了目前对刚性和柔性有限尺寸纤维在湍流中的行为和组织的理解,强调了这些各向异性颗粒与球形颗粒相比所增加的复杂性。研究探讨了长度、曲率和惯性对刚性和柔性纤维动力学的影响。重点介绍了基于纤维的新型实验方法,如纤维跟踪测速仪。最终,本文旨在更清晰地展示纤维湍流中错综复杂的动力学及其在各个领域的实际影响。
{"title":"Dynamics and applications of finite-size fibre-like objects in turbulent flows","authors":"Alessandro Chiarini ,&nbsp;Marco Edoardo Rosti ,&nbsp;Andrea Mazzino","doi":"10.1016/j.euromechflu.2024.07.007","DOIUrl":"10.1016/j.euromechflu.2024.07.007","url":null,"abstract":"<div><p>This review delves into the dynamics of fibre-laden turbulent flows, a field that has garnered substantial attention due to its relevance in both natural and engineering contexts. The focus here is mainly on finite-size fibres, those exceeding the Kolmogorov scale, diverging from the commonly studied smaller ones. The study synthesises current understanding of the behaviour and organisation of both rigid and flexible finite-size fibres within turbulent flows, underscoring the added complexity these anisotropic particles introduce compared to their spherical counterparts. The influence of the length, the curvature and the inertia on the dynamics of rigid and flexible fibres is addressed. Fibre-based novel experimental methods, such as Fibre Tracking Velocimetry, are highlighted. Ultimately, this paper seeks to provide a clearer picture of the intricate dynamics at play in fibre-laden turbulent flows and their practical implications in various fields.</p></div>","PeriodicalId":11985,"journal":{"name":"European Journal of Mechanics B-fluids","volume":"108 ","pages":"Pages 104-118"},"PeriodicalIF":2.5,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0997754624000955/pdfft?md5=aa7ebb504cf4ff04056cad591a8a3955&pid=1-s2.0-S0997754624000955-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141700730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of axial electric and transverse magnetic fields on a rotating electro-osmotic flow in micro-parallel plates 轴向电场和横向磁场对微型平行板中旋转电渗流的影响
IF 2.5 3区 工程技术 Q2 MECHANICS Pub Date : 2024-07-10 DOI: 10.1016/j.euromechflu.2024.06.006
Ashok K. Barik , Prafulla K. Swain

This paper explores the combined influence of an axial electric field and a perpendicular magnetic field imposed on rotating micro-parallel plates immersed in an electrolyte solution. A specialized computer program was developed to solve the velocity as well as the EDL potential fields using the finite difference method, employing the Debye-Hückel (DH) approximation to linearization the EDL potential. The study examines the influence of various non-dimensional parameters, including rotational speed (ω), Hartmann number (Ha), Debye-Hückel parameter (κ), and the non-dimensional parameter ‘S’, on axial, and transverse velocities, wall shear stress, and net flow rate. Results demonstrate that, both velocity components decrease with increased rotational speed and Hartmann number, while the net flow rate increases with the Debye-Hückel parameter for both rotating and non-rotating systems. The impact of these parameters on shear stress was also analyzed. Analysis of Ekmann spirals in the velocity plane revealed closed spirals at a higher rotational speed and open spirals at lower speeds, with spiral size reducing as rotational speed increases.

本文探讨了轴向电场和垂直磁场对浸入电解质溶液中的旋转微平行板的综合影响。本文开发了一个专门的计算机程序,利用有限差分法求解速度场和 EDL 电位场,并采用 Debye-Hückel (DH) 近似法对 EDL 电位进行线性化。研究考察了各种非尺寸参数(包括转速 (ω)、哈特曼数 (Ha)、Debye-Hückel 参数 (κ)、非尺寸参数 "S")对轴向和横向速度、壁面剪应力和净流速的影响。结果表明,在旋转和非旋转系统中,两个速度分量都随着转速和哈特曼数的增加而减小,而净流速则随着德拜-胡克尔参数的增加而增大。此外,还分析了这些参数对剪切应力的影响。速度面上的艾克曼螺旋分析表明,在较高转速下为封闭螺旋,在较低转速下为开放螺旋,螺旋尺寸随着转速的增加而减小。
{"title":"Effects of axial electric and transverse magnetic fields on a rotating electro-osmotic flow in micro-parallel plates","authors":"Ashok K. Barik ,&nbsp;Prafulla K. Swain","doi":"10.1016/j.euromechflu.2024.06.006","DOIUrl":"https://doi.org/10.1016/j.euromechflu.2024.06.006","url":null,"abstract":"<div><p>This paper explores the combined influence of an axial electric field and a perpendicular magnetic field imposed on rotating micro-parallel plates immersed in an electrolyte solution. A specialized computer program was developed to solve the velocity as well as the EDL potential fields using the finite difference method, employing the Debye-Hückel (DH) approximation to linearization the EDL potential. The study examines the influence of various non-dimensional parameters, including rotational speed (<span><math><mi>ω</mi></math></span>), Hartmann number (<em>Ha</em>), Debye-Hückel parameter (<span><math><mi>κ</mi></math></span>), and the non-dimensional parameter ‘<em>S’,</em> on axial, and transverse velocities, wall shear stress, and net flow rate. Results demonstrate that, both velocity components decrease with increased rotational speed and Hartmann number, while the net flow rate increases with the Debye-Hückel parameter for both rotating and non-rotating systems. The impact of these parameters on shear stress was also analyzed. Analysis of Ekmann spirals in the velocity plane revealed closed spirals at a higher rotational speed and open spirals at lower speeds, with spiral size reducing as rotational speed increases.</p></div>","PeriodicalId":11985,"journal":{"name":"European Journal of Mechanics B-fluids","volume":"107 ","pages":"Pages 148-164"},"PeriodicalIF":2.5,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141595812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
History, review and summary of the cavity flow phenomena 空腔流动现象的历史、回顾和总结
IF 2.5 3区 工程技术 Q2 MECHANICS Pub Date : 2024-07-09 DOI: 10.1016/j.euromechflu.2024.07.005
Caroline O.L. Hamilton Smith , Nicholas Lawson , Gareth A. Vio

This paper provides a detailed historical review of the cavity flow phenomena in fluid mechanics, from recorded studies in the late 19th century to more recent work. Research has been reviewed, independently and in culmination with other studies, to summarise the major and minor governing parameters of the flow. Outlined are influences of technology, regarding numerical models, experimental methods, analysis, and control techniques. All Mach regimes are assessed; low incompressible, sub-, trans-, super- and hypersonic where substantial research was available. A large variety of cavity geometry was presented, mostly rectangular, with more complex features akin to industry application, and where available, assessment of the boundary layer structure is also included. Conclusions on present understanding, and requirements for future work are given, with an aligned set of available data.

Cavity flow-field initialisation and development is dependent on; upstream (U/S) flow conditions of; airspeed M, boundary layer (BL) disturbance (δ), displacement (δ) and momentum (θ) thickness, either laminar or turbulent, and cavity geometry; length (L), depth (D) and width (W), with ratios L/D,L/W,δ/D and L/θ defining cavity response. I.e., a narrow cavity with a thin BL U/S tends toward a periodic 3D flow-field, with 3D effects and periodicity decreasing as W and δ increase. Control is achievable through SL stabilisation via spanwise disturbance from the leading edge (LE), or thickening the BL, thus shear layer (SL). Experiments are preferred over numerical models, due to the inefficiency and high cost of required models (Colonius, 2001; Rowley and Williams, 2006; Lawson and Barakos, 2011). We understand effects of L, D, L/D, and M, thus future work should focus on W, BL and how they impact mode switching and stream/spanwise flow propagation. Also introducing more complex geometry, realistic to application, to observe additional 3D effects and U/S momentum change, in contribution to a scaling parameter and determination of criteria for activation of material displacement.

本文对流体力学中的空腔流现象进行了详细的历史回顾,从 19 世纪末有记录的研究到最近的工作。本文回顾了独立进行的研究以及与其他研究共同进行的研究,总结了流动的主要和次要控制参数。概述了技术对数值模型、实验方法、分析和控制技术的影响。评估了所有的马赫状态:低不可压缩、亚、跨、超和高超音速,这些状态都有大量的研究成果。介绍了大量不同的空腔几何形状,大多数为矩形,但也有与工业应用类似的更复杂的特征,在有条件的情况下,还包括对边界层结构的评估。对目前的理解和未来工作的要求给出了结论,并对可用数据集进行了调整。空腔流场的初始化和发展取决于:上游(U/S)流动条件;空速 M∞、边界层(BL)扰动(δ)、位移(δ∗)和动量(θ)厚度(层流或湍流)以及空腔几何形状;长度(L)、深度(D)和宽度(W),其中 L/D、L/W、δ/D 和 L/θ 的比率决定了空腔响应。也就是说,具有薄 BL U/S 的窄腔趋向于周期性三维流场,三维效应和周期性随着 W 和 δ 的增加而减小。可以通过来自前缘(LE)的跨度扰动或加厚 BL(即剪切层)来稳定 SL,从而实现控制。由于所需的模型效率低、成本高,实验比数值模型更受欢迎(Colonius,2001 年;Rowley 和 Williams,2006 年;Lawson 和 Barakos,2011 年)。我们了解 L、D、L/D 和 M∞ 的影响,因此未来的工作应侧重于 W、BL 以及它们如何影响模式切换和流/跨向流动传播。此外,还可以引入更复杂的几何图形,以观察额外的三维效应和 U/S 动量变化,从而为缩放参数和材料位移激活标准的确定做出贡献。
{"title":"History, review and summary of the cavity flow phenomena","authors":"Caroline O.L. Hamilton Smith ,&nbsp;Nicholas Lawson ,&nbsp;Gareth A. Vio","doi":"10.1016/j.euromechflu.2024.07.005","DOIUrl":"10.1016/j.euromechflu.2024.07.005","url":null,"abstract":"<div><p>This paper provides a detailed historical review of the cavity flow phenomena in fluid mechanics, from recorded studies in the late 19th century to more recent work. Research has been reviewed, independently and in culmination with other studies, to summarise the major and minor governing parameters of the flow. Outlined are influences of technology, regarding numerical models, experimental methods, analysis, and control techniques. All Mach regimes are assessed; low incompressible, sub-, trans-, super- and hypersonic where substantial research was available. A large variety of cavity geometry was presented, mostly rectangular, with more complex features akin to industry application, and where available, assessment of the boundary layer structure is also included. Conclusions on present understanding, and requirements for future work are given, with an aligned set of available data.</p><p>Cavity flow-field initialisation and development is dependent on; upstream (U/S) flow conditions of; airspeed <span><math><msub><mrow><mi>M</mi></mrow><mrow><mi>∞</mi></mrow></msub></math></span>, boundary layer (BL) disturbance (<span><math><mi>δ</mi></math></span>), displacement (<span><math><msup><mrow><mi>δ</mi></mrow><mrow><mo>∗</mo></mrow></msup></math></span>) and momentum (<span><math><mi>θ</mi></math></span>) thickness, either laminar or turbulent, and cavity geometry; length (<span><math><mi>L</mi></math></span>), depth (<span><math><mi>D</mi></math></span>) and width (<span><math><mi>W</mi></math></span>), with ratios <span><math><mrow><mi>L</mi><mo>/</mo><mi>D</mi><mo>,</mo><mi>L</mi><mo>/</mo><mi>W</mi><mo>,</mo><mi>δ</mi><mo>/</mo><mi>D</mi></mrow></math></span> and <span><math><mrow><mi>L</mi><mo>/</mo><mi>θ</mi></mrow></math></span> defining cavity response. I.e., a narrow cavity with a thin BL U/S tends toward a periodic 3D flow-field, with 3D effects and periodicity decreasing as <span><math><mi>W</mi></math></span> and <span><math><mi>δ</mi></math></span> increase. Control is achievable through SL stabilisation via spanwise disturbance from the leading edge (LE), or thickening the BL, thus shear layer (SL). Experiments are preferred over numerical models, due to the inefficiency and high cost of required models (Colonius, 2001; Rowley and Williams, 2006; Lawson and Barakos, 2011). We understand effects of <span><math><mi>L</mi></math></span>, <span><math><mi>D</mi></math></span>, <span><math><mrow><mi>L</mi><mo>/</mo><mi>D</mi></mrow></math></span>, and <span><math><msub><mrow><mi>M</mi></mrow><mrow><mi>∞</mi></mrow></msub></math></span>, thus future work should focus on <span><math><mi>W</mi></math></span>, BL and how they impact mode switching and stream/spanwise flow propagation. Also introducing more complex geometry, realistic to application, to observe additional 3D effects and U/S momentum change, in contribution to a scaling parameter and determination of criteria for activation of material displacement.</p></div>","PeriodicalId":11985,"journal":{"name":"European Journal of Mechanics B-fluids","volume":"108 ","pages":"Pages 32-72"},"PeriodicalIF":2.5,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0997754624000931/pdfft?md5=16170beb85af69fa56b723cbcc601b67&pid=1-s2.0-S0997754624000931-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141638469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comment to the article “Mean flow induced by longitudinal libration of a fluid-filled rotating container bounded by two conical surfaces” 对文章 "由两个锥形表面围成的充满液体的旋转容器的纵向沥青引起的平均流 "的评论
IF 2.5 3区 工程技术 Q2 MECHANICS Pub Date : 2024-07-08 DOI: 10.1016/j.euromechflu.2024.07.006
M.V. Kurgansky

Developing the ideas from the author’s previous publication in the European Journal of Mechanics / B Fluids (https://doi.org/10.1016/j.euromechflu.2024.02.008), an interpolation formula is proposed for the angular velocity of mean retrograde flow in a fluid-filled oblate spheroid with arbitrary eccentricity, in the limit of very low longitudinal libration frequencies.

根据作者之前在《欧洲力学/B 流体学报》(https://doi.org/10.1016/j.euromechflu.2024.02.008)上发表的论文中的观点,提出了一个插值公式,用于计算在极低纵向湍动频率极限下,在任意偏心率的充满流体的扁球体中平均逆向流动的角速度。
{"title":"Comment to the article “Mean flow induced by longitudinal libration of a fluid-filled rotating container bounded by two conical surfaces”","authors":"M.V. Kurgansky","doi":"10.1016/j.euromechflu.2024.07.006","DOIUrl":"10.1016/j.euromechflu.2024.07.006","url":null,"abstract":"<div><p>Developing the ideas from the author’s previous publication in the European Journal of Mechanics / B Fluids (<span><span>https://doi.org/10.1016/j.euromechflu.2024.02.008</span><svg><path></path></svg></span>), an interpolation formula is proposed for the angular velocity of mean retrograde flow in a fluid-filled oblate spheroid with arbitrary eccentricity, in the limit of very low longitudinal libration frequencies.</p></div>","PeriodicalId":11985,"journal":{"name":"European Journal of Mechanics B-fluids","volume":"107 ","pages":"Pages 188-189"},"PeriodicalIF":2.5,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141701404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On the design of manifolds for parallel channel systems 论平行通道系统的流形设计
IF 2.5 3区 工程技术 Q2 MECHANICS Pub Date : 2024-07-06 DOI: 10.1016/j.euromechflu.2024.07.004
Yaser Hadad , Ghazal Mohsenian , Paul Chiarot, Bahgat Sammakia

In the design of high-performance heat and mass transfer devices such as liquid-cooled heat sinks, catalytic reactors, and catalytic convertors, parallel mini/microchannels are favored owing to their special potentials. Offering low pressure drop, providing high transfer surface area to volume ratio, and being easy to manufacture and optimize have been drawing thermal and chemical engineers attention to parallel channels for past decades. When working with parallel channels, the challenge of flow maldistribution is commonly faced which decreases their efficiency significantly. System total pressure drop and flow uniformity are two parameters that determine the system performance. In the present study, a variety of practical ideas, aiming to enhance parallel channels performance, are studied numerically. Inventive manifold designs with high hydraulic performance are created through the course of this study. The results of these designs are compared with basic conventional designs which show substantial enhancement. Analyzing less successful designs lead us to deep understanding of fluid dynamics in parallel channel heat and mass transfer devices.

在液冷散热器、催化反应器和催化转化器等高性能传热传质设备的设计中,平行微型/微通道因其特殊的潜力而备受青睐。过去几十年来,平行通道具有压降低、传质表面积与体积比高、易于制造和优化等特点,一直吸引着热能和化学工程师的关注。在使用平行通道时,通常会遇到流量分布不均的问题,这大大降低了平行通道的效率。系统总压降和流量均匀性是决定系统性能的两个参数。本研究以数值方法研究了旨在提高并联水道性能的各种实用想法。在研究过程中,创造出了具有高水力性能的创新型歧管设计。这些设计的结果与基本的传统设计进行了比较,后者显示出显著的改进。通过对不太成功的设计进行分析,我们对平行通道传热和传质装置中的流体动力学有了更深入的了解。
{"title":"On the design of manifolds for parallel channel systems","authors":"Yaser Hadad ,&nbsp;Ghazal Mohsenian ,&nbsp;Paul Chiarot,&nbsp;Bahgat Sammakia","doi":"10.1016/j.euromechflu.2024.07.004","DOIUrl":"10.1016/j.euromechflu.2024.07.004","url":null,"abstract":"<div><p>In the design of high-performance heat and mass transfer devices such as liquid-cooled heat sinks, catalytic reactors, and catalytic convertors, parallel mini/microchannels are favored owing to their special potentials. Offering low pressure drop, providing high transfer surface area to volume ratio, and being easy to manufacture and optimize have been drawing thermal and chemical engineers attention to parallel channels for past decades. When working with parallel channels, the challenge of flow maldistribution is commonly faced which decreases their efficiency significantly. System total pressure drop and flow uniformity are two parameters that determine the system performance. In the present study, a variety of practical ideas, aiming to enhance parallel channels performance, are studied numerically. Inventive manifold designs with high hydraulic performance are created through the course of this study. The results of these designs are compared with basic conventional designs which show substantial enhancement. Analyzing less successful designs lead us to deep understanding of fluid dynamics in parallel channel heat and mass transfer devices.</p></div>","PeriodicalId":11985,"journal":{"name":"European Journal of Mechanics B-fluids","volume":"108 ","pages":"Pages 1-31"},"PeriodicalIF":2.5,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141638441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A proposal for a combustion model considering the Lewis number and its evaluation 考虑路易斯数的燃烧模型及其评估建议
IF 2.5 3区 工程技术 Q2 MECHANICS Pub Date : 2024-07-06 DOI: 10.1016/j.euromechflu.2024.07.003
Fujio Akagi , Hiroaki Ito , Gento Hamada , Shin-ichi Inage

The purpose of this research is to develop a combustion model that can be applied uniformly to laminar and turbulent premixed flames while considering the effect of the Lewis number (Le). The model considers the effect of Le on the transport equations of the reaction progress, which varies with the chemical species and temperature. The distribution of the reaction progress variable is approximated by a hyperbolic tangent function, while the other distribution of the reaction progress variable is estimated using the approximated distribution and transport equation of the reaction progress variable considering the Le. The validity of the model was evaluated under the conditions of propane and iso-octane with Le ≠ 1 and methane with Le = 1 (equivalence ratios of 0.5 and 1). The estimated results were found to be in good agreement with those of previous studies under all conditions. A method of introducing a turbulence model into this model is also described. the validity of the model is confirmed by a comparison with the experimental results of a turbulent methane flame. It was confirmed that the model is in good agreement with experimental results and other turbulence models, and represents approximately a conventional turbulence model.

本研究的目的是开发一种燃烧模型,该模型可统一应用于层流和湍流预混火焰,同时考虑刘易斯数(Le)的影响。该模型考虑了 Le 对反应进程传输方程的影响,反应进程随化学物种和温度的变化而变化。反应进展变量的分布由双曲正切函数近似表示,而反应进展变量的其他分布则使用近似分布和考虑到 Le 的反应进展变量的传输方程进行估算。在 Le ≠ 1 的丙烷和异辛烷以及 Le = 1 的甲烷(当量比为 0.5 和 1)条件下,对模型的有效性进行了评估。结果发现,在所有条件下,估算结果都与之前的研究结果十分吻合。此外,还介绍了将湍流模型引入该模型的方法。通过与甲烷湍流火焰的实验结果进行比较,证实了该模型的有效性。结果证实,该模型与实验结果和其他湍流模型十分吻合,近似于传统的湍流模型。
{"title":"A proposal for a combustion model considering the Lewis number and its evaluation","authors":"Fujio Akagi ,&nbsp;Hiroaki Ito ,&nbsp;Gento Hamada ,&nbsp;Shin-ichi Inage","doi":"10.1016/j.euromechflu.2024.07.003","DOIUrl":"https://doi.org/10.1016/j.euromechflu.2024.07.003","url":null,"abstract":"<div><p>The purpose of this research is to develop a combustion model that can be applied uniformly to laminar and turbulent premixed flames while considering the effect of the Lewis number (<em>Le</em>). The model considers the effect of <em>Le</em> on the transport equations of the reaction progress, which varies with the chemical species and temperature. The distribution of the reaction progress variable is approximated by a hyperbolic tangent function, while the other distribution of the reaction progress variable is estimated using the approximated distribution and transport equation of the reaction progress variable considering the <em>Le</em>. The validity of the model was evaluated under the conditions of propane and iso-octane with <em>Le</em> ≠ 1 and methane with <em>Le</em> = 1 (equivalence ratios of 0.5 and 1). The estimated results were found to be in good agreement with those of previous studies under all conditions. A method of introducing a turbulence model into this model is also described. the validity of the model is confirmed by a comparison with the experimental results of a turbulent methane flame. It was confirmed that the model is in good agreement with experimental results and other turbulence models, and represents approximately a conventional turbulence model.</p></div>","PeriodicalId":11985,"journal":{"name":"European Journal of Mechanics B-fluids","volume":"107 ","pages":"Pages 175-186"},"PeriodicalIF":2.5,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141607312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamics and spectral character of unsteady pressure field on afterbody of generic space launcher: Transonic flows 通用航天运载火箭后体上非稳定压力场的动力学和频谱特性:跨音速流动
IF 2.5 3区 工程技术 Q2 MECHANICS Pub Date : 2024-07-06 DOI: 10.1016/j.euromechflu.2024.06.007
N.S. Vikramaditya, M. Viji

The unsteady pressure field over an axisymmetric backward-facing step was investigated experimentally at transonic freestream Mach numbers of 1.05, 1.2, and 1.4. The study was aimed at examining the influence of transonic freestream Mach numbers on the spatio-temporal character of the unsteady pressure field and on the dominant modes/mechanisms driving it. Surface flow visualization, schlieren, and unsteady pressure measurements were carried out as part of the experimental investigation. From oil flow visualization and schlieren, the reattachment region was identified, and consequently, the mean reattachment length was estimated. The mean reattachment length shows an increase with the increase in freestream Mach number. The coefficient of mean pressure along the rearbody imitates a classical backward-facing step flow profile and can be divided into three distinct regions. The peak values of the coefficient of mean pressure and the coefficient of root mean square of the fluctuation are seen to decrease with an increase in the freestream Mach number. Conventional spectral analysis reveals that as the freestream Mach number increases, the dominant peak in the spectra shifts to lower frequencies. From the spectra, three dominant fluid dynamic mechanisms depending on the freestream Mach number have been identified. Proper Orthogonal Decomposition (POD) analysis shows that 79–84 % of the total energy contribution comes from the first six modes. The temporal dynamics of the POD modes indicate three prominent mechanisms are responsible for the unsteady pressure field. Spectral analysis of POD modes indicates that the spectra are primarily driven by the first three POD modes for freestream Mach number of 1.05 and the first two modes for freestream Mach numbers of 1.2 and 1.4. Moreover, it reveals the presence of three dominant modes, and the freestream Mach number strongly dictates the dominant mode that is driving the pressure field.

在跨音速自由流马赫数为 1.05、1.2 和 1.4 时,对轴对称后向台阶上的非稳态压力场进行了实验研究。研究的目的是检验跨音速自由流马赫数对非稳定压力场的时空特性以及驱动压力场的主要模式/机制的影响。作为实验研究的一部分,进行了表面流动可视化、裂片和非稳态压力测量。通过油流可视化和裂片分析,确定了再附着区域,并由此估算出平均再附着长度。平均再附着长度随着自由流马赫数的增加而增加。沿后车身的平均压力系数模仿了经典的后向阶梯流剖面,可分为三个不同的区域。平均压力系数和波动均方根系数的峰值随着自由流马赫数的增加而减小。传统的频谱分析表明,随着自由流马赫数的增加,频谱中的主要峰值会向低频移动。从频谱中可以确定取决于自由流马赫数的三种主要流体动力学机制。适当正交分解(POD)分析表明,总能量的 79% 至 84% 来自前六种模式。POD 模式的时间动力学表明,有三种主要机制造成了不稳定压力场。POD 模式的频谱分析表明,自由流马赫数为 1.05 时,频谱主要由前三个 POD 模式驱动,自由流马赫数为 1.2 和 1.4 时,主要由前两个模式驱动。此外,它还揭示了三种主导模式的存在,自由流马赫数在很大程度上决定了驱动压力场的主导模式。
{"title":"Dynamics and spectral character of unsteady pressure field on afterbody of generic space launcher: Transonic flows","authors":"N.S. Vikramaditya,&nbsp;M. Viji","doi":"10.1016/j.euromechflu.2024.06.007","DOIUrl":"https://doi.org/10.1016/j.euromechflu.2024.06.007","url":null,"abstract":"<div><p>The unsteady pressure field over an axisymmetric backward-facing step was investigated experimentally at transonic freestream Mach numbers of 1.05, 1.2, and 1.4. The study was aimed at examining the influence of transonic freestream Mach numbers on the spatio-temporal character of the unsteady pressure field and on the dominant modes/mechanisms driving it. Surface flow visualization, schlieren, and unsteady pressure measurements were carried out as part of the experimental investigation. From oil flow visualization and schlieren, the reattachment region was identified, and consequently, the mean reattachment length was estimated. The mean reattachment length shows an increase with the increase in freestream Mach number. The coefficient of mean pressure along the rearbody imitates a classical backward-facing step flow profile and can be divided into three distinct regions. The peak values of the coefficient of mean pressure and the coefficient of root mean square of the fluctuation are seen to decrease with an increase in the freestream Mach number. Conventional spectral analysis reveals that as the freestream Mach number increases, the dominant peak in the spectra shifts to lower frequencies. From the spectra, three dominant fluid dynamic mechanisms depending on the freestream Mach number have been identified. Proper Orthogonal Decomposition (POD) analysis shows that 79–84 % of the total energy contribution comes from the first six modes. The temporal dynamics of the POD modes indicate three prominent mechanisms are responsible for the unsteady pressure field. Spectral analysis of POD modes indicates that the spectra are primarily driven by the first three POD modes for freestream Mach number of 1.05 and the first two modes for freestream Mach numbers of 1.2 and 1.4. Moreover, it reveals the presence of three dominant modes, and the freestream Mach number strongly dictates the dominant mode that is driving the pressure field.</p></div>","PeriodicalId":11985,"journal":{"name":"European Journal of Mechanics B-fluids","volume":"107 ","pages":"Pages 121-137"},"PeriodicalIF":2.5,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141595814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transverse flow under oscillating stimulation in helical square ducts with cochlea-like geometrical curvature and torsion 具有类似耳蜗的几何曲率和扭转的螺旋方形管道在振荡刺激下的横向流动
IF 2.5 3区 工程技术 Q2 MECHANICS Pub Date : 2024-07-05 DOI: 10.1016/j.euromechflu.2024.07.001
N.C. Harte , D. Obrist , M. Caversaccio , G.P.R. Lajoinie , W. Wimmer

The cochlea, situated within the inner ear, is a spiral-shaped, liquid-filled organ responsible for hearing. The physiological significance of its shape remains uncertain. Previous research has scarcely addressed the occurrence of transverse flow within the cochlea, particularly in relation to its unique shape. This study aims to investigate the impact of the geometric features of the cochlea on fluid dynamics by characterizing transverse flow induced by harmonically oscillating axial flow in square ducts with curvature and torsion resembling human cochlear anatomy. We examined four geometries to investigate curvature and torsion effects on axial and transverse flow components. Twelve frequencies from 0.125 Hz to 256 Hz were studied, covering infrasound and low-frequency hearing, with mean inlet velocity amplitudes representing levels expected for normal conversation or louder situations. Our simulations show that torsion contributes significantly to transverse flow in unsteady conditions, and that its contribution increases with increasing oscillation frequency. Curvature alone has a small effect on transverse flow strength, which decreases rapidly with increasing frequency. Strikingly, the combined effect of curvature and torsion on transverse flow is greater than expected from a simple superposition of the two effects, especially when the relative contribution of curvature alone becomes negligible. These findings may be relevant to understanding physiological processes in the cochlea, including metabolite transport and wall shear stress. Further studies are needed to investigate possible implications for cochlear mechanics.

耳蜗位于内耳内,是一个螺旋形的充满液体的器官,负责听觉。其形状的生理意义仍不确定。以往的研究很少涉及耳蜗内横向流动的发生,尤其是与其独特形状的关系。本研究旨在研究耳蜗的几何特征对流体动力学的影响,方法是描述谐振轴向流在具有类似人类耳蜗解剖结构的弯曲和扭转的方形管道中引起的横向流。我们研究了四种几何形状,以探讨曲率和扭转对轴向和横向流动成分的影响。我们研究了从 0.125 Hz 到 256 Hz 的 12 个频率,涵盖了次声和低频听力,平均入口速度振幅代表了正常谈话或更大音量情况下的预期水平。我们的模拟结果表明,在非稳态条件下,扭转对横向流动的影响很大,而且其影响随着振荡频率的增加而增大。曲率本身对横向流动强度的影响较小,但会随着频率的增加而迅速减小。令人震惊的是,曲率和扭转对横向流动的综合影响比简单叠加两种影响所预期的要大,尤其是当曲率单独的相对影响变得可以忽略不计时。这些发现可能与了解耳蜗的生理过程有关,包括代谢物运输和壁剪应力。还需要进一步的研究来探究其对耳蜗力学的可能影响。
{"title":"Transverse flow under oscillating stimulation in helical square ducts with cochlea-like geometrical curvature and torsion","authors":"N.C. Harte ,&nbsp;D. Obrist ,&nbsp;M. Caversaccio ,&nbsp;G.P.R. Lajoinie ,&nbsp;W. Wimmer","doi":"10.1016/j.euromechflu.2024.07.001","DOIUrl":"https://doi.org/10.1016/j.euromechflu.2024.07.001","url":null,"abstract":"<div><p>The cochlea, situated within the inner ear, is a spiral-shaped, liquid-filled organ responsible for hearing. The physiological significance of its shape remains uncertain. Previous research has scarcely addressed the occurrence of transverse flow within the cochlea, particularly in relation to its unique shape. This study aims to investigate the impact of the geometric features of the cochlea on fluid dynamics by characterizing transverse flow induced by harmonically oscillating axial flow in square ducts with curvature and torsion resembling human cochlear anatomy. We examined four geometries to investigate curvature and torsion effects on axial and transverse flow components. Twelve frequencies from 0.125 Hz to 256 Hz were studied, covering infrasound and low-frequency hearing, with mean inlet velocity amplitudes representing levels expected for normal conversation or louder situations. Our simulations show that torsion contributes significantly to transverse flow in unsteady conditions, and that its contribution increases with increasing oscillation frequency. Curvature alone has a small effect on transverse flow strength, which decreases rapidly with increasing frequency. Strikingly, the combined effect of curvature and torsion on transverse flow is greater than expected from a simple superposition of the two effects, especially when the relative contribution of curvature alone becomes negligible. These findings may be relevant to understanding physiological processes in the cochlea, including metabolite transport and wall shear stress. Further studies are needed to investigate possible implications for cochlear mechanics.</p></div>","PeriodicalId":11985,"journal":{"name":"European Journal of Mechanics B-fluids","volume":"107 ","pages":"Pages 165-174"},"PeriodicalIF":2.5,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S099775462400089X/pdfft?md5=77ed99f793e0794eb1d3cc3a0e5a8936&pid=1-s2.0-S099775462400089X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141595813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Using Large Eddy Simulation to predict fluid residence time in a test ventilated room 利用大涡流模拟预测试验通风室内的流体停留时间
IF 2.5 3区 工程技术 Q2 MECHANICS Pub Date : 2024-07-05 DOI: 10.1016/j.euromechflu.2024.07.002
W.A. McMullan , J. Mifsud , T.O. Jelly , M. Angelino

We study the capability of Large Eddy Simulation (LES) to predict fluid residence time in a ventilated room. Validation is performed against an experiment where the inlet vent slot width matches that of the room. On a coarse grid, the Smagorinsky subgrid-scale model has a detrimental effect on flow statistics, whilst the WALE and Germano–Lilly models perform well. A refined grid produces close agreement with the reference data. A simulation with a narrow inlet slot demonstrates that the flow becomes three-dimensional, with pairs of spiral vortices forming in the room and altering the recirculation pattern when compared to the wide inlet slot configuration. The obtained LES statistics show improvements in the prediction of velocity field over conventional RANS modelling techniques. Fluid age probability density functions show that a wide range of residence time values around the mean value can be observed within the room. LES is capable of providing accurate predictions in a simplified ventilated room, and residence time probability density function distributions can be useful for the improvement of ventilation strategies.

我们研究了大涡流模拟(LES)预测通风房间内流体停留时间的能力。在入口通风槽宽度与房间宽度一致的情况下,我们根据实验进行了验证。在粗网格上,Smagorinsky 子网格尺度模型对流动统计有不利影响,而 WALE 和 Germano-Lilly 模型则表现良好。细化网格与参考数据非常接近。使用窄入口槽进行的模拟表明,与宽入口槽配置相比,流动变得更加立体,室内形成了成对的螺旋涡流,并改变了再循环模式。获得的 LES 统计数据表明,与传统的 RANS 建模技术相比,对速度场的预测有所改进。流体龄概率密度函数显示,在室内可以观察到围绕平均值的各种停留时间值。LES 能够对简化通风房间进行精确预测,而停留时间概率密度函数分布则有助于改进通风策略。
{"title":"Using Large Eddy Simulation to predict fluid residence time in a test ventilated room","authors":"W.A. McMullan ,&nbsp;J. Mifsud ,&nbsp;T.O. Jelly ,&nbsp;M. Angelino","doi":"10.1016/j.euromechflu.2024.07.002","DOIUrl":"10.1016/j.euromechflu.2024.07.002","url":null,"abstract":"<div><p>We study the capability of Large Eddy Simulation (LES) to predict fluid residence time in a ventilated room. Validation is performed against an experiment where the inlet vent slot width matches that of the room. On a coarse grid, the Smagorinsky subgrid-scale model has a detrimental effect on flow statistics, whilst the WALE and Germano–Lilly models perform well. A refined grid produces close agreement with the reference data. A simulation with a narrow inlet slot demonstrates that the flow becomes three-dimensional, with pairs of spiral vortices forming in the room and altering the recirculation pattern when compared to the wide inlet slot configuration. The obtained LES statistics show improvements in the prediction of velocity field over conventional RANS modelling techniques. Fluid age probability density functions show that a wide range of residence time values around the mean value can be observed within the room. LES is capable of providing accurate predictions in a simplified ventilated room, and residence time probability density function distributions can be useful for the improvement of ventilation strategies.</p></div>","PeriodicalId":11985,"journal":{"name":"European Journal of Mechanics B-fluids","volume":"108 ","pages":"Pages 73-89"},"PeriodicalIF":2.5,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S099775462400092X/pdfft?md5=c88c1f79cc4af94fa64670b47fbc7c60&pid=1-s2.0-S099775462400092X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141638470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
European Journal of Mechanics B-fluids
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1