Pub Date : 2024-01-23DOI: 10.1088/2515-7647/ad1c6a
Marcos Katz, Tuomas Paso, Konstantin Mikhaylov, Luis Pessoa, Helder Fontes, Liisa Hakola, Jaakko Leppäniemi, Emanuel Carlos, Guido Dolmans, Julio Rufo, Marcin Drzewiecki, Hazem Sallouha, Bruce Napier, André Branquinho, Kerstin Eder
This paper provides an overview of the SUPERIOT project, an EU SNS JU (Smart Networks and Services Joint Undertaking) initiative focused on developing truly sustainable IoT systems. The SUPERIOT concept is based on a unique holistic approach to sustainability, proactively developing sustainable solutions considering the design, implementation, usage and disposal/reuse stages. The concept exploits radio and optical technologies to provide dual-mode wireless connectivity and dual-mode energy harvesting as well as dual-mode IoT node positioning. The implementation of the IoT nodes or devices will maximize the use of sustainable printed electronics technologies, including printed components, conductive inks and substrates. The paper describes the SUPERIOT concept, covering the key technical approaches to be used, promising scenarios and applications, project goals and demonstrators which will be developed to the proof-of-concept stage. In addition, the paper briefly discusses some important visions on how this technology may be further developed in the future.
{"title":"Towards truly sustainable IoT systems: the SUPERIOT project","authors":"Marcos Katz, Tuomas Paso, Konstantin Mikhaylov, Luis Pessoa, Helder Fontes, Liisa Hakola, Jaakko Leppäniemi, Emanuel Carlos, Guido Dolmans, Julio Rufo, Marcin Drzewiecki, Hazem Sallouha, Bruce Napier, André Branquinho, Kerstin Eder","doi":"10.1088/2515-7647/ad1c6a","DOIUrl":"https://doi.org/10.1088/2515-7647/ad1c6a","url":null,"abstract":"This paper provides an overview of the SUPERIOT project, an EU SNS JU (Smart Networks and Services Joint Undertaking) initiative focused on developing truly sustainable IoT systems. The SUPERIOT concept is based on a unique holistic approach to sustainability, proactively developing sustainable solutions considering the design, implementation, usage and disposal/reuse stages. The concept exploits radio and optical technologies to provide dual-mode wireless connectivity and dual-mode energy harvesting as well as dual-mode IoT node positioning. The implementation of the IoT nodes or devices will maximize the use of sustainable printed electronics technologies, including printed components, conductive inks and substrates. The paper describes the SUPERIOT concept, covering the key technical approaches to be used, promising scenarios and applications, project goals and demonstrators which will be developed to the proof-of-concept stage. In addition, the paper briefly discusses some important visions on how this technology may be further developed in the future.","PeriodicalId":44008,"journal":{"name":"Journal of Physics-Photonics","volume":"28 1","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139753333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-18DOI: 10.1088/2515-7647/ad1c6b
Marika Valentino, Daniele Pirone, Jaromir Béhal, Martina Mugnano, Rachele Castaldo, Giuseppe C Lama, Pasquale Memmolo, Lisa Miccio, Vittorio Bianco, Simonetta Grilli, Pietro Ferraro
Graphene is considered a possible drug deliver in nanomedicine for its mechanical, physical and chemical characteristics. Thus, studying graphene biocompatibility is pivotal to contribute to the modern nano-therapy science. The coexistence between cells and graphene should be analysed using non-invasive technologies and thus quantitative phase imaging (QPI) modalities are suitable to investigate the morphometric evolution of cells under nanomaterial exposure. Here, we show how a multimodal QPI approach can furnish a noninvasive analysis for probing the dose-dependent effect of nanoGO clusters on adherent NIH 3T3 fibroblast cells. We rely on both digital holography and Fourier ptychography (FP) in transmission microscopy mode. The former allows accurate time-lapse experiments at the single cell level. The latter provides a wide field of view characterization at the cells network level, thus assuring a significant statistical measurement by exploiting the intrinsic large space-bandwidth product of FP. The combination of these two techniques allows one to extract multimodal information about the cell resilience to adverse effects of nanoGO in the surrounding buffer, namely through quantitative, multi-scale, and time-resolved characterization.
{"title":"QPI assay of fibroblasts resilience to adverse effects of nanoGO clusters by multimodal and multiscale microscopy","authors":"Marika Valentino, Daniele Pirone, Jaromir Béhal, Martina Mugnano, Rachele Castaldo, Giuseppe C Lama, Pasquale Memmolo, Lisa Miccio, Vittorio Bianco, Simonetta Grilli, Pietro Ferraro","doi":"10.1088/2515-7647/ad1c6b","DOIUrl":"https://doi.org/10.1088/2515-7647/ad1c6b","url":null,"abstract":"Graphene is considered a possible drug deliver in nanomedicine for its mechanical, physical and chemical characteristics. Thus, studying graphene biocompatibility is pivotal to contribute to the modern nano-therapy science. The coexistence between cells and graphene should be analysed using non-invasive technologies and thus quantitative phase imaging (QPI) modalities are suitable to investigate the morphometric evolution of cells under nanomaterial exposure. Here, we show how a multimodal QPI approach can furnish a noninvasive analysis for probing the dose-dependent effect of nanoGO clusters on adherent NIH 3T3 fibroblast cells. We rely on both digital holography and Fourier ptychography (FP) in transmission microscopy mode. The former allows accurate time-lapse experiments at the single cell level. The latter provides a wide field of view characterization at the cells network level, thus assuring a significant statistical measurement by exploiting the intrinsic large space-bandwidth product of FP. The combination of these two techniques allows one to extract multimodal information about the cell resilience to adverse effects of nanoGO in the surrounding buffer, namely through quantitative, multi-scale, and time-resolved characterization.","PeriodicalId":44008,"journal":{"name":"Journal of Physics-Photonics","volume":"14 1","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139506549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-18DOI: 10.1088/2515-7647/ad1c6c
Daniel Díaz Rivas, Ann-Kathrin Raab, Chen Guo, Anne-Lise Viotti, Ivan Sytcevich, Anne L’Huillier, Cord Arnold
The dispersion scan (d-scan) technique is extended to measurement of the time-dependent polarization state of ultrashort laser pulses. In the simplest implementation for linearly polarized ultrashort pulses, the d-scan technique records the second harmonic generation spectrum as a function of a known spectral phase manipulation. By applying this method to two orthogonally polarized projections of an arbitrary polarized electric field and by measuring the spectrum at an intermediate angle, we can reconstruct the evolution over time of the polarization state. We demonstrate the method by measuring a polarization gate generated from 6fs pulses with a combination of waveplates. The measurements are compared to simulations, showing an excellent agreement.
{"title":"Measurement of ultrashort laser pulses with a time-dependent polarization state using the d-scan technique","authors":"Daniel Díaz Rivas, Ann-Kathrin Raab, Chen Guo, Anne-Lise Viotti, Ivan Sytcevich, Anne L’Huillier, Cord Arnold","doi":"10.1088/2515-7647/ad1c6c","DOIUrl":"https://doi.org/10.1088/2515-7647/ad1c6c","url":null,"abstract":"The dispersion scan (d-scan) technique is extended to measurement of the time-dependent polarization state of ultrashort laser pulses. In the simplest implementation for linearly polarized ultrashort pulses, the d-scan technique records the second harmonic generation spectrum as a function of a known spectral phase manipulation. By applying this method to two orthogonally polarized projections of an arbitrary polarized electric field and by measuring the spectrum at an intermediate angle, we can reconstruct the evolution over time of the polarization state. We demonstrate the method by measuring a polarization gate generated from <inline-formula>\u0000<tex-math><?CDATA $6,mathrm{fs}$?></tex-math>\u0000<mml:math overflow=\"scroll\"><mml:mn>6</mml:mn><mml:mrow><mml:mi mathvariant=\"normal\">f</mml:mi><mml:mi mathvariant=\"normal\">s</mml:mi></mml:mrow></mml:math>\u0000<inline-graphic xlink:href=\"jpphotonad1c6cieqn1.gif\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> pulses with a combination of waveplates. The measurements are compared to simulations, showing an excellent agreement.","PeriodicalId":44008,"journal":{"name":"Journal of Physics-Photonics","volume":"15 1","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139506390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-07DOI: 10.1088/2515-7647/ad10b2
Alejandro Madrid-Sánchez, José Ortiz-Ocampo, Carlos Trujillo, Heidi Ottevaere
Commercial off-the-shelf optics enable economic and rapid solutions in the photonics industry and academia. However, the design of optical systems with off-the-shelf optics is a time-consuming task for experienced optical designers and hopeless for novice designers. In this paper, we propose an automatic optical design tool to generate optical systems using only off-the-shelf optical components without human assistance. Our solution is based on an evolution strategy (ES) that performs a discrete combinatorial optimization following optical design-based methodologies that satisfy user-defined specifications. Unlike the conventional methods, the algorithm decreases the design process time and provides optical designers with several optical solutions from where to choose and adapt for targeted applications. In this work, the ES is described and tested with front stop optical configurations. We demonstrate the broad solution domain of the algorithm through the generation of optical systems with F-numbers within a range F/1 to F/90 and field of views up to 300 mm at the image plane. To analyze the solution domain and the characteristics of the solution, we used the design specifications of 29 commercially available scan lenses and compared the performance of different ES parameters. The compatibility of our algorithm with (standard) commercially available optical design software unlocks automatic design tools for off-the-shelf optical systems.
现成的商用光学器件为光子学行业和学术界提供了经济、快速的解决方案。然而，使用现成光学元件设计光学系统对于经验丰富的光学设计人员来说是一项耗时的任务，而对于设计新手来说则毫无希望。在本文中，我们提出了一种自动光学设计工具，只需使用现成的光学元件即可生成光学系统，无需人工辅助。我们的解决方案以进化策略（ES）为基础，按照基于光学设计的方法进行离散组合优化，以满足用户定义的规格要求。与传统方法不同的是，该算法缩短了设计过程的时间，并为光学设计人员提供了多种光学解决方案，供其选择并适应目标应用。在这项工作中，对 ES 进行了描述，并用前挡光学配置进行了测试。我们通过生成 F/1 至 F/90 范围内的 F 数和在像面上最大 300 mm 的视场的光学系统，展示了该算法广泛的解决方案域。为了分析求解域和求解特征，我们使用了 29 个市售扫描镜头的设计规格，并比较了不同 ES 参数的性能。我们的算法与（标准）市售光学设计软件兼容，为现成的光学系统提供了自动设计工具。
{"title":"Off-the-shelf optical systems design enabled by an evolution strategy: front stop case","authors":"Alejandro Madrid-Sánchez, José Ortiz-Ocampo, Carlos Trujillo, Heidi Ottevaere","doi":"10.1088/2515-7647/ad10b2","DOIUrl":"https://doi.org/10.1088/2515-7647/ad10b2","url":null,"abstract":"Commercial off-the-shelf optics enable economic and rapid solutions in the photonics industry and academia. However, the design of optical systems with off-the-shelf optics is a time-consuming task for experienced optical designers and hopeless for novice designers. In this paper, we propose an automatic optical design tool to generate optical systems using only off-the-shelf optical components without human assistance. Our solution is based on an evolution strategy (ES) that performs a discrete combinatorial optimization following optical design-based methodologies that satisfy user-defined specifications. Unlike the conventional methods, the algorithm decreases the design process time and provides optical designers with several optical solutions from where to choose and adapt for targeted applications. In this work, the ES is described and tested with front stop optical configurations. We demonstrate the broad solution domain of the algorithm through the generation of optical systems with F-numbers within a range F/1 to F/90 and field of views up to 300 mm at the image plane. To analyze the solution domain and the characteristics of the solution, we used the design specifications of 29 commercially available scan lenses and compared the performance of different ES parameters. The compatibility of our algorithm with (standard) commercially available optical design software unlocks automatic design tools for off-the-shelf optical systems.","PeriodicalId":44008,"journal":{"name":"Journal of Physics-Photonics","volume":"2 1","pages":""},"PeriodicalIF":3.8,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138691303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-03DOI: 10.1088/2515-7647/ad078a
Jaismeen KAUR, Louis Daniault, Zhao Cheng, Oscar Tourneur, Olivier Tcherbakoff, Fabrice Reau, Jean-François Hergott, Rodrigo Lopez-Martens
Abstract We study both numerically and experimentally the use of two third-order nonlinear temporal filtering techniques, namely nonlinear ellipse rotation and cross-polarized wave generation, for simultaneous nonlinear spectral broadening and temporal contrast enhancement of mJ energy, 30 fs titanium:sapphire laser pulses in a multi-pass cell. In both cases, a contrast enhancement greater than 3 orders of magnitude is observed, together with record high conversion efficiencies. Careful balancing of nonlinearity and dispersion inside the multi-pass cell helps tune the spectral broadening process and control the post-compressed pulse duration for specific applications.
{"title":"Simultaneous nonlinear spectral broadening and temporal contrast enhancement of ultrashort pulses in a multi-pass cell","authors":"Jaismeen KAUR, Louis Daniault, Zhao Cheng, Oscar Tourneur, Olivier Tcherbakoff, Fabrice Reau, Jean-François Hergott, Rodrigo Lopez-Martens","doi":"10.1088/2515-7647/ad078a","DOIUrl":"https://doi.org/10.1088/2515-7647/ad078a","url":null,"abstract":"Abstract We study both numerically and experimentally the use of two third-order nonlinear temporal filtering techniques, namely nonlinear ellipse rotation and cross-polarized wave generation, for simultaneous nonlinear spectral broadening and temporal contrast enhancement of mJ energy, 30 fs titanium:sapphire laser pulses in a multi-pass cell. In both cases, a contrast enhancement greater than 3 orders of magnitude is observed, together with record high conversion efficiencies. Careful balancing of nonlinearity and dispersion inside the multi-pass cell helps tune the spectral broadening process and control the post-compressed pulse duration for specific applications.","PeriodicalId":44008,"journal":{"name":"Journal of Physics-Photonics","volume":"162 S340","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135775592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-01DOI: 10.1088/1742-6596/2633/1/012001
Yansen Wu, Deshan Liu, Tiancheng Wang, Anmin Zhao
Abstract The aerodynamic parameters of unmanned aerial vehicles (UAVs) play an important role in the newly designed drone. For the purpose of the real-time measurement of the aerodynamic performance parameters of the UAV in flight status, based on the self-development connected-wing configuration airplane, a novel airborne aerodynamics test scheme is researched and verified in this work. The findings of this study indicate that the effectiveness of numerical calculations can be verified by comparison with both results of the numerical simulation and airborne flight test in the same conditions. The newly designed UAV equipped with this test system in the future, not only achieves quick and reliable results of aerodynamic performance and powered system efficiency but also can save the expense of wind tunnel experiments, which is of high potential to the UAV application.
{"title":"Research of a novel aerodynamic evaluation method for fixed-wing UAV","authors":"Yansen Wu, Deshan Liu, Tiancheng Wang, Anmin Zhao","doi":"10.1088/1742-6596/2633/1/012001","DOIUrl":"https://doi.org/10.1088/1742-6596/2633/1/012001","url":null,"abstract":"Abstract The aerodynamic parameters of unmanned aerial vehicles (UAVs) play an important role in the newly designed drone. For the purpose of the real-time measurement of the aerodynamic performance parameters of the UAV in flight status, based on the self-development connected-wing configuration airplane, a novel airborne aerodynamics test scheme is researched and verified in this work. The findings of this study indicate that the effectiveness of numerical calculations can be verified by comparison with both results of the numerical simulation and airborne flight test in the same conditions. The newly designed UAV equipped with this test system in the future, not only achieves quick and reliable results of aerodynamic performance and powered system efficiency but also can save the expense of wind tunnel experiments, which is of high potential to the UAV application.","PeriodicalId":44008,"journal":{"name":"Journal of Physics-Photonics","volume":"21 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135763532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-01DOI: 10.1088/1742-6596/2636/1/012012
Xin Liang, Liyuan Zheng, Xingzhi Lin
Abstract The design of control equipment for the cold energy recovery and utilization of LNG ships is the focus of ship technology and a prerequisite for equipment manufacture. By analyzing the design background and design status of LNG ship cold energy recycling control equipment, the study forms design ideas and prepares equipment materials. It optimizes design methods and compares and evaluates them with traditional control equipment. After a series of evaluation tests, it is found that the LNG ship cold energy comprehensive utilization control equipment can effectively achieve the purpose of energy saving and emission reduction and solve the problems of high operating costs and environmental pollution of traditional LNG ships.
{"title":"The control equipment for the integrated use of cold energy in LNG vessels","authors":"Xin Liang, Liyuan Zheng, Xingzhi Lin","doi":"10.1088/1742-6596/2636/1/012012","DOIUrl":"https://doi.org/10.1088/1742-6596/2636/1/012012","url":null,"abstract":"Abstract The design of control equipment for the cold energy recovery and utilization of LNG ships is the focus of ship technology and a prerequisite for equipment manufacture. By analyzing the design background and design status of LNG ship cold energy recycling control equipment, the study forms design ideas and prepares equipment materials. It optimizes design methods and compares and evaluates them with traditional control equipment. After a series of evaluation tests, it is found that the LNG ship cold energy comprehensive utilization control equipment can effectively achieve the purpose of energy saving and emission reduction and solve the problems of high operating costs and environmental pollution of traditional LNG ships.","PeriodicalId":44008,"journal":{"name":"Journal of Physics-Photonics","volume":"25 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135763651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Horizontal well fracturing development is significant in improving the development effect of low permeability reservoirs and is widely applied in many low permeability reservoirs of China. In this study, the reservoir numerical simulation is used to establish different mixed horizontal well networks of the target reservoir. The result shows that the best waterflood development effect is achieved when horizontal segment orientation and crack orientation are at an angle of 45°. The horizontal segment length and fracturing parameters of mixed horizontal well networks are optimized. It is considered that the rational horizontal segment length of the horizontal well is 400 m, the rational number of cracks is 3, and the optimal crack conductivity is between 180-200 mD.m. Through the study of mixed horizontal well network and fracturing parameter optimization, the low permeability reservoir efficient horizontal well fracturing development is well guided.
{"title":"Mixed Horizontal Well Pattern and Fracturing Parameter Optimization of Low Permeability Reservoir","authors":"Qi-hao Hu, Fa-jun Guo, Hong-qiang Cao, Xiu-wei Wang, Ya-zhou Wang, Xia Wang, Hong-tao Wang, Jie-feng Cao","doi":"10.1088/1742-6596/2636/1/012007","DOIUrl":"https://doi.org/10.1088/1742-6596/2636/1/012007","url":null,"abstract":"Abstract Horizontal well fracturing development is significant in improving the development effect of low permeability reservoirs and is widely applied in many low permeability reservoirs of China. In this study, the reservoir numerical simulation is used to establish different mixed horizontal well networks of the target reservoir. The result shows that the best waterflood development effect is achieved when horizontal segment orientation and crack orientation are at an angle of 45°. The horizontal segment length and fracturing parameters of mixed horizontal well networks are optimized. It is considered that the rational horizontal segment length of the horizontal well is 400 m, the rational number of cracks is 3, and the optimal crack conductivity is between 180-200 mD.m. Through the study of mixed horizontal well network and fracturing parameter optimization, the low permeability reservoir efficient horizontal well fracturing development is well guided.","PeriodicalId":44008,"journal":{"name":"Journal of Physics-Photonics","volume":"23 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135763661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-01DOI: 10.1088/1742-6596/2633/1/012011
Jiajun Zhao, Hui Gao, Chen Zhang, Dongsheng Wen
Abstract To enhance the cooling performance of the scramjet regenerative cooling system, a novel taper tube is proposed. Under supercritical pressure, the flow characteristics and heat transfer characteristics of endothermic hydrocarbon fuel (EHF) in taper tube, narrow cylindrical tube, and wide cylindrical tube are numerical investigated and compared. The results of the investigation of flow and heat transfer processes in the above three tubes indicate that the taper tube effectively facilitates the pyrolysis of n -decane and the n -decane conversion is increased by 3.94%, compared with narrow cylindrical tube. Compared with wide cylindrical tube, the taper tube enhances cooling effect and the wall temperature near the outlet is reduced by 50.16 K. The taper tube contributes to the cooling structure optimization and promotion of regenerative cooling system performance.
{"title":"Numerical analysis of flow and heat transfer characteristics of supercritical endothermic hydrocarbon fuel in taper tube","authors":"Jiajun Zhao, Hui Gao, Chen Zhang, Dongsheng Wen","doi":"10.1088/1742-6596/2633/1/012011","DOIUrl":"https://doi.org/10.1088/1742-6596/2633/1/012011","url":null,"abstract":"Abstract To enhance the cooling performance of the scramjet regenerative cooling system, a novel taper tube is proposed. Under supercritical pressure, the flow characteristics and heat transfer characteristics of endothermic hydrocarbon fuel (EHF) in taper tube, narrow cylindrical tube, and wide cylindrical tube are numerical investigated and compared. The results of the investigation of flow and heat transfer processes in the above three tubes indicate that the taper tube effectively facilitates the pyrolysis of n -decane and the n -decane conversion is increased by 3.94%, compared with narrow cylindrical tube. Compared with wide cylindrical tube, the taper tube enhances cooling effect and the wall temperature near the outlet is reduced by 50.16 K. The taper tube contributes to the cooling structure optimization and promotion of regenerative cooling system performance.","PeriodicalId":44008,"journal":{"name":"Journal of Physics-Photonics","volume":"23 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135763664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-01DOI: 10.1088/1742-6596/2633/1/012002
Hao Gong
Abstract In order to reduce the wide body aircraft refueling process time-cost and improve the airport operation efficiency, pressure refueling system design strategy was innovated. The shutoff valves’ operation sequence in refueling process was optimized. The diameter of the orifices on the pressure refueling system fuel line was designed. Pressure refueling performance was simulated and analyzed at different scenarios. The results show that it can improve the pressure refueling system performance at different scenarios by optimizing the pressure refueling process strategy design including optimizing the fuel line orifice design and optimizing the wing tank inner side shut-off valve operation sequence.
{"title":"Performance optimization design of wide-body aircraft pressure refueling system","authors":"Hao Gong","doi":"10.1088/1742-6596/2633/1/012002","DOIUrl":"https://doi.org/10.1088/1742-6596/2633/1/012002","url":null,"abstract":"Abstract In order to reduce the wide body aircraft refueling process time-cost and improve the airport operation efficiency, pressure refueling system design strategy was innovated. The shutoff valves’ operation sequence in refueling process was optimized. The diameter of the orifices on the pressure refueling system fuel line was designed. Pressure refueling performance was simulated and analyzed at different scenarios. The results show that it can improve the pressure refueling system performance at different scenarios by optimizing the pressure refueling process strategy design including optimizing the fuel line orifice design and optimizing the wing tank inner side shut-off valve operation sequence.","PeriodicalId":44008,"journal":{"name":"Journal of Physics-Photonics","volume":"28 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135763767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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