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Numerical study on magnetohydrodynamics micropolar Carreau nanofluid with Brownian motion and thermophoresis effect 具有布朗运动和热泳效应的磁流体力学微极卡罗纳米流体的数值研究
IF 3.1 Q1 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-07-14 DOI: 10.1080/02286203.2023.2234240
K. Madhura, Babitha
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引用次数: 0
Prediction of characteristic points of single-peak flow curve through statistical technique and artificial neural network 利用统计技术和人工神经网络预测单峰流量曲线特征点
IF 3.1 Q1 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-07-12 DOI: 10.1080/02286203.2023.2234223
Debasish Das, N. Thakur, Matruprasad Rout
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引用次数: 0
Qualitative analysis of magnetohydrodynamics Powell–Eyring fluid with variable electrical conductivity 变电导率鲍威尔-埃环流体磁流体力学定性分析
IF 3.1 Q1 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-07-05 DOI: 10.1080/02286203.2023.2231613
Sradharam Swain, Suman Sarkar, B. Sahoo, O. Makinde
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引用次数: 1
Enhanced the modeling accuracy by the design of new photovoltaic models including the proposed nonlinear thermal resistors 通过设计包括非线性热电阻在内的新型光伏模型,提高了建模精度
IF 3.1 Q1 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-07-04 DOI: 10.1080/02286203.2022.2094646
S. Kahla, M. Bechouat, T. Amieur, M. Sedraoui, H. Guessoum
ABSTRACT This article proposes new photovoltaic (PV) models, with which the modeling accuracies are much improved, regardless of wide absolute temperature variations. The desired PV models are designed by an equivalent electrical circuit consisting of a single diode and two proposed nonlinear thermal resistors. The realization of such resistors is therefore the key contribution of this article since they significantly increase the degrees of freedom of similar circuits, including fixed resistors. As a result, the given modeling accuracies are clearly improved not only under standard test conditions but also in more severe climatic environments, characterized by high absolute temperatures. To achieve this goal, the parameters of the two proposed PV models were optimized using the gnetic algorithm, where a fitness function for each PV model is well minimized. Each fitness function was previously formulated from comparing actual output currents, prerecorded from the existing ISOFOTON I-50 PV panel, by predicted output currents, computed using the Lambert-W function. The given performances by the proposed PV models were compared with those provided by the standard PV ones where the given simulation results reveal the superiority of the proposed PV models under different weather conditions.
本文提出了一种新的光伏(PV)模型,该模型可以大大提高建模精度,而不受绝对温度变化的影响。期望的PV模型是由一个二极管和两个非线性热电阻组成的等效电路设计的。因此,这种电阻的实现是本文的关键贡献,因为它们显着增加了类似电路的自由度,包括固定电阻。因此,不仅在标准测试条件下,而且在以高绝对温度为特征的更恶劣的气候环境下,给定的建模精度都得到了明显提高。为了实现这一目标,采用遗传算法对两种PV模型的参数进行了优化,其中每个PV模型的适应度函数都得到了很好的最小化。每个适应度函数之前都是通过比较现有ISOFOTON I-50光伏面板预记录的实际输出电流和使用Lambert-W函数计算的预测输出电流来制定的。将所提出的光伏模型的性能与标准光伏模型的性能进行了比较,仿真结果显示了所提出的光伏模型在不同天气条件下的优越性。
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引用次数: 0
Eyring-Powell nano liquid flow through permeable elongated sheet conveying inclined magnetic field subject to constructive chemical reaction and multiple slip effects 埃灵-鲍威尔纳米液体流经可渗透的细长片,输送倾斜磁场,受建设性化学反应和多重滑移效应的影响
IF 3.1 Q1 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-07-04 DOI: 10.1080/02286203.2022.2094648
V. Patil, Amar B. Patil, M. Shamshuddin, Pooja P. Humane, Govind R. Rajput
ABSTRACT The present study examines the multiple slip effects and constructive chemical reaction on Eyring-Powell nanoliquid through a permeable elongated sheet on an inclined magnetic field. The energy balance equation includes Heat and Joule dissipation terms. The renowned Buongiorno nanofluid model is employed extensively to explore the thermophoresis and Brownian motion phenomena. The primary partial differential equations (PDEs) of governing flow phenomena are remodeled to non-linear ordinary differential equations (ODEs) by adopting proper similarity invariants. Runge-Kutta 4th order quadrature employing shooting technique is utilized to transform boundary value problem to initial value problem to seek numerical results via graphs and tables on physically interesting parameters. Current outcomes are validated through the comparison with previously published studies. An applied magnetic field slows down the fluid and raises both thermal and solutal boundary layers. It is significant to notice that the thermal boundary layer rises, as the Brownian and Thermophoresis are amplified.
摘要本研究考察了Eyring Powell纳米液体在倾斜磁场下通过可渗透细长片的多重滑移效应和结构化学反应。能量平衡方程包括热耗散项和焦耳耗散项。著名的Buongiorno纳米流体模型被广泛用于探索热泳和布朗运动现象。采用适当的相似不变量,将控制流动现象的一阶偏微分方程(PDE)重构为非线性常微分方程(ODE)。采用射击技术的龙格-库塔四阶求积将边值问题转化为初值问题,通过物理感兴趣参数的图形和表格来寻求数值结果。通过与先前发表的研究进行比较,验证了当前的结果。施加的磁场减缓了流体的速度,并升高了热边界层和溶质边界层。值得注意的是,随着布朗和热电泳的放大,热边界层上升。
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引用次数: 6
Dual solutions for magnetic-convective-quadratic radiative MoS2 − SiO2/H2O hybrid nanofluid flow in Darcy-Fochheimer porous medium in presence of second-order slip velocity through a permeable shrinking surface: Entropy and stability analysis 磁-对流-二次辐射MoS2−SiO2/H2O混合纳米流体在Darcy-Fochheimer多孔介质中二阶滑移速度通过可渗透收缩表面的对偶解:熵和稳定性分析
IF 3.1 Q1 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-06-29 DOI: 10.1080/02286203.2023.2222464
G. Mandal, D. Pal
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引用次数: 1
Parameters Extraction of Single Diode and Double Diode Models Using Analytical and Numerical Approach: A Comparative Study 用解析和数值方法提取单二极管和双二极管模型参数的比较研究
IF 3.1 Q1 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-06-26 DOI: 10.1080/02286203.2023.2226285
Driss Saadaoui, Mustapha Elyaqouti, K. Assalaou, D. B. Hmamou, Souad Lidaighbi, E. Arjdal, Imade Choulli, Abdelfattah Elhammoudy
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引用次数: 2
Optimising standard solar cell designs for maximum efficiency using genetic algorithms 使用遗传算法优化标准太阳能电池设计以实现最大效率
IF 3.1 Q1 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-06-22 DOI: 10.1080/02286203.2023.2226041
M. Hickey, A. P. Morrison
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引用次数: 0
Chemically and thermally radiated Williamson MHD fluid over porous media with heat source-sink 带热源散热器的多孔介质上的化学和热辐射Williamson MHD流体
IF 3.1 Q1 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-06-13 DOI: 10.1080/02286203.2023.2223401
B. P. Jadhav, S. Salunkhe
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引用次数: 1
Flow of magnetized Powell-Eyring fluid in microchannel exposed to non-linear radiation and constricted to slip regime by varying viscosity 磁化鲍威尔-埃环流体在非线性辐射下的微通道流动,随着粘度的变化而收缩到滑移状态
Q1 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-05-30 DOI: 10.1080/02286203.2023.2216049
B. J. Gireesha, S Manthesha, F. Almeida, P. Mallikarjun
ABSTRACTThe present article exemplifies flow of Powell-Eyring fluid flowing in the microchannel which is placed horizontally. For this microfluidic flow, fluid is sucked and injected through the walls of the microchannel. The microchannel is also influenced by magnetic field and exposed to the non-linear radiation due to its extensive application to process the polymers, as the ultimate product quality relies on the heat controlling factors. Interest is laid on studying flow manner by differing viscosity. Flow is facilitated by slip and convective conditions. Non-linear equations are solved using finite difference code improved by using the Lobatto IIIA formula with the help of MATLAB software and findings are discussed using graphs. Results attained from the analysis claim that Powell-Eyring fluid parameters decline the velocity of the flow and enhance the skin-friction. The main concern of the present work is to maximize the heat transfer which could be attained by keeping Prandtl number low, thus for higher momentum diffusivity exhaustion in the heat transfer rate is recorded. Reynolds number also turns out to be critical factor as it accelerates the fluid flow at the suction wall and decelerates the velocity at the injection wall.KEYWORDS: Eyring-Powell fluidvelocity slipnon-linear radiationvariable viscosityconvective conditions Nomenclature a=Distance between the plates m;B0=Magnetic field strengthAm−1;Be=Bejan number;Bi=Biot number;B,C=Material fluid parameters;cp=Specific heat at constant pressure (Jkg−1K−1);ℎ=Convective heat transfer coefficientsWm−2K−1;Ec=Eckert number;k=Thermal conductivity (W/m k);M=Magnetic;p=Pressure kgm−1s−2Pr=Prandtl number;Rd=Non-linear radiation parameter;Re=Reynolds number;T=Fluid temperature (K);Ta=Ambient temperature (K);Th=Hot fluid temperature (K);θ=Dimensionless temperature;u=Dimensionless velocity;u ′=Axial velocitym/s;Greek symbols σ=Electrical conductivity(S/m);v0=Uniform suction-injection velocityms−1μ=Dynamic viscositykgm−1s−1α=Slip parameterξ=Stephan-Boltzmann constantWm−2K−4;φ=Mean absorption co-efficientm−1λ=Viscosity variation parameter;λ1λ2=Eyring Powell fluid parameters;ρ=Density(kg/m3);Subscript 1,2=Lower and upper plates respectively;Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationNotes on contributorsB. J. GireeshaDr. B. J. Gireesha is an eminent researcher who has obtained Doctoral degree from Kuvempu University in the year 2003. The author has competed post-doctoral research in Cleveland State University, Ohio and has attained prestigious Raman fellowship-2015 for post-doctoral research for Indian scholars in USA. He is a researcher of high rank and has reviewed numerous research articles for various National and International journals. He has published more than 280 research articles and possesses an ability to reason analytically and rationally with a sound judgement.S MantheshaDr. S. Manthesha, Lecturer, Department of Mathematics,
摘要本文举例说明了鲍威尔-埃环流体在水平放置的微通道中的流动。对于这种微流体流动,流体通过微通道的壁被吸入和注入。微通道广泛应用于聚合物的加工,同时也受到磁场和非线性辐射的影响,最终产品的质量取决于热控制因素。研究了不同粘度下的流动方式。滑移和对流条件有利于流动。在MATLAB软件的帮助下,利用Lobatto IIIA公式改进的有限差分代码对非线性方程进行求解,并用图形对结果进行了讨论。分析结果表明,鲍威尔-埃环流体参数降低了流动速度,增加了表面摩擦。本工作主要关注的是保持较低的普朗特数可以达到最大的换热,从而在换热速率中记录较高的动量扩散率耗尽。雷诺数也被证明是一个关键因素,因为它加速了流体在吸力壁上的流动,降低了注射壁上的速度。关键词:术语a=板间距离m;B0=磁场强度am - 1;Be=Bejan数;Bi=Biot数;B,C=材料流体参数;cp=恒压比热(Jkg−1K−1); =对流换热系数swm−2K−1;Ec=Eckert数;k=导热系数(W/m k); m =磁性;p=压力kgm−1s−2Pr=普朗特数;Rd=非线性辐射参数;Re=雷诺数;T=流体温度(K);Ta=环境温度(K);Th=热流体温度(K);θ=无量纲温度;u=无量纲速度;u ' =轴向速度m/s;希腊符号σ=电导率(s /m);v0=均匀吸注速度ms - 1μ=动态粘度kgm - 1s - 1α=滑移参数ξ=Stephan-Boltzmann常数m - 2K - 4;φ=平均吸收系数m - 1λ=粘度变化参数;λ1λ2=Eyring Powell流体参数;ρ=密度(kg/m3);下标1,2分别=上下板作者报告了利益冲突。附加信息:贡献者说明j . GireeshaDr。B. J. Gireesha是一位杰出的研究人员,于2003年获得库文普大学博士学位。作者曾在美国俄亥俄州克利夫兰州立大学竞争博士后研究,并获得著名的拉曼奖学金-2015印度学者赴美博士后研究。他是一名高级研究员,在各种国内和国际期刊上发表了许多研究论文。他发表了280多篇研究论文,并具有分析和理性推理的能力,具有良好的判断力。MantheshaDr。S. manshha,印度卡纳塔克邦班加罗尔塔普罗特学院数学系讲师。他于2022年在图姆库尔大学获得博士学位。他有5年的教学和科研经验,是流体力学领域的潜在研究者。AlmeidaDr。Felicita Almeida博士毕业于库文普大学,是一名在流体力学领域特别是在微通道中非牛顿流体流动方面有潜力的研究人员。作者对数值计算有较强的把握,论文的专业性强。MallikarjunDr。Patil Mallikarjun,印度卡纳塔克邦图姆库尔图姆库尔大学数学研究系教授。他于2007年在Kalaburagi的Gulbarga大学获得博士学位。他的研究领域是热传递和流体流动问题,微通道中的流动分析。
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INTERNATIONAL JOURNAL OF MODELLING AND SIMULATION
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