发布求助
文献互助 智能选刊 最新文献

Journal of Fluid Mechanics最新文献

筛选
英文 中文
Fully developed flow through shrouded-fin arrays: exact and asymptotic solutions 流经遮蔽鳍阵列的完全展开流：精确和渐近解
IF 3.7 2区 工程技术
Journal of Fluid Mechanics Pub Date : 2024-08-20 DOI: 10.1017/jfm.2024.505
Hiroyuki Miyoshi, Toby L. Kirk, Marc Hodes, Darren G. Crowdy
{"title":"Fully developed flow through shrouded-fin arrays: exact and asymptotic solutions","authors":"Hiroyuki Miyoshi, Toby L. Kirk, Marc Hodes, Darren G. Crowdy","doi":"10.1017/jfm.2024.505","DOIUrl":"https://doi.org/10.1017/jfm.2024.505","url":null,"abstract":"<p><img href=\"S0022112024005056_figAb.png\" mimesubtype=\"png\" mimetype=\"image\" orientation=\"\" position=\"\" src=\"https://static.cambridge.org/content/id/urn%3Acambridge.org%3Aid%3Aarticle%3AS0022112024005056/resource/name/S0022112024005056_figAb.png?pub-status=live\" type=\"\"/></p>","PeriodicalId":15853,"journal":{"name":"Journal of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142207635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Transport scaling in porous media convection 多孔介质对流中的传输缩放
IF 3.7 2区 工程技术
Journal of Fluid Mechanics Pub Date : 2024-08-20 DOI: 10.1017/jfm.2024.528
Xiaojue Zhu, Yifeng Fu, Marco De Paoli
{"title":"Transport scaling in porous media convection","authors":"Xiaojue Zhu, Yifeng Fu, Marco De Paoli","doi":"10.1017/jfm.2024.528","DOIUrl":"https://doi.org/10.1017/jfm.2024.528","url":null,"abstract":"<p><img href=\"S0022112024005287_figAb.png\" mimesubtype=\"png\" mimetype=\"image\" orientation=\"\" position=\"\" src=\"https://static.cambridge.org/content/id/urn%3Acambridge.org%3Aid%3Aarticle%3AS0022112024005287/resource/name/S0022112024005287_figAb.png?pub-status=live\" type=\"\"/></p>","PeriodicalId":15853,"journal":{"name":"Journal of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142207634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Numerical study of a generic ship's airwake for understanding bi‐stability mechanism 为了解双稳态机制而对一般船舶气浪进行的数值研究
IF 3.7 2区 工程技术
Journal of Fluid Mechanics Pub Date : 2024-08-20 DOI: 10.1017/jfm.2024.511
Kewei Xu, Xinchao Su, Isak Jonsson, Rickard Bensow, Sinisa Krajnovic
{"title":"Numerical study of a generic ship's airwake for understanding bi‐stability mechanism","authors":"Kewei Xu, Xinchao Su, Isak Jonsson, Rickard Bensow, Sinisa Krajnovic","doi":"10.1017/jfm.2024.511","DOIUrl":"https://doi.org/10.1017/jfm.2024.511","url":null,"abstract":"<p><img href=\"S0022112024005111_figAb.png\" mimesubtype=\"png\" mimetype=\"image\" orientation=\"\" position=\"\" src=\"https://static.cambridge.org/content/id/urn%3Acambridge.org%3Aid%3Aarticle%3AS0022112024005111/resource/name/S0022112024005111_figAb.png?pub-status=live\" type=\"\"/></p>","PeriodicalId":15853,"journal":{"name":"Journal of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142207632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Thermoelectrohydrodynamic convection in a finite cylindrical annulus under microgravity 微重力条件下有限圆柱环内的热电流体动力对流
IF 3.7 2区 工程技术
Journal of Fluid Mechanics Pub Date : 2024-08-20 DOI: 10.1017/jfm.2024.538
Changwoo Kang, Innocent Mutabazi, Harunori N. Yoshikawa
{"title":"Thermoelectrohydrodynamic convection in a finite cylindrical annulus under microgravity","authors":"Changwoo Kang, Innocent Mutabazi, Harunori N. Yoshikawa","doi":"10.1017/jfm.2024.538","DOIUrl":"https://doi.org/10.1017/jfm.2024.538","url":null,"abstract":"<p><img href=\"S002211202400538X_figAb.png\" mimesubtype=\"png\" mimetype=\"image\" orientation=\"\" position=\"\" src=\"https://static.cambridge.org/content/id/urn%3Acambridge.org%3Aid%3Aarticle%3AS002211202400538X/resource/name/S002211202400538X_figAb.png?pub-status=live\" type=\"\"/></p>","PeriodicalId":15853,"journal":{"name":"Journal of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142207637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Three-dimensional generative adversarial networks for turbulent flow estimation from wall measurements 根据壁面测量结果估算湍流的三维生成对抗网络
IF 3.7 2区 工程技术
Journal of Fluid Mechanics Pub Date : 2024-08-20 DOI: 10.1017/jfm.2024.432
Antonio Cuéllar, Alejandro Güemes, Andrea Ianiro, Óscar Flores, Ricardo Vinuesa, Stefano Discetti
{"title":"Three-dimensional generative adversarial networks for turbulent flow estimation from wall measurements","authors":"Antonio Cuéllar, Alejandro Güemes, Andrea Ianiro, Óscar Flores, Ricardo Vinuesa, Stefano Discetti","doi":"10.1017/jfm.2024.432","DOIUrl":"https://doi.org/10.1017/jfm.2024.432","url":null,"abstract":"<p><img href=\"S0022112024004324_figAb.png\" mimesubtype=\"png\" mimetype=\"image\" orientation=\"\" position=\"\" src=\"https://static.cambridge.org/content/id/urn%3Acambridge.org%3Aid%3Aarticle%3AS0022112024004324/resource/name/S0022112024004324_figAb.png?pub-status=live\" type=\"\"/></p>","PeriodicalId":15853,"journal":{"name":"Journal of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Numerical validation of scaling laws for stratified turbulence 分层湍流比例定律的数值验证
IF 3.7 2区 工程技术
Journal of Fluid Mechanics Pub Date : 2024-08-20 DOI: 10.1017/jfm.2024.531
Pascale Garaud, Gregory P. Chini, Laura Cope, Kasturi Shah, Colm-cille P. Caulfield
{"title":"Numerical validation of scaling laws for stratified turbulence","authors":"Pascale Garaud, Gregory P. Chini, Laura Cope, Kasturi Shah, Colm-cille P. Caulfield","doi":"10.1017/jfm.2024.531","DOIUrl":"https://doi.org/10.1017/jfm.2024.531","url":null,"abstract":"<p><img href=\"S0022112024005317_figAb.png\" mimesubtype=\"png\" mimetype=\"image\" orientation=\"\" position=\"\" src=\"https://static.cambridge.org/content/id/urn%3Acambridge.org%3Aid%3Aarticle%3AS0022112024005317/resource/name/S0022112024005317_figAb.png?pub-status=live\" type=\"\"/></p>","PeriodicalId":15853,"journal":{"name":"Journal of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142207638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Jet mixing enhancement with Bayesian optimization, deep learning and persistent data topology 利用贝叶斯优化、深度学习和持久数据拓扑增强喷气混合效果
IF 3.7 2区 工程技术
Journal of Fluid Mechanics Pub Date : 2024-08-20 DOI: 10.1017/jfm.2024.525
Yiqing Li, Bernd R. Noack, Tianyu Wang, Guy Y. Cornejo Maceda, Ethan Pickering, Tamir Shaqarin, Artur Tyliszczak
{"title":"Jet mixing enhancement with Bayesian optimization, deep learning and persistent data topology","authors":"Yiqing Li, Bernd R. Noack, Tianyu Wang, Guy Y. Cornejo Maceda, Ethan Pickering, Tamir Shaqarin, Artur Tyliszczak","doi":"10.1017/jfm.2024.525","DOIUrl":"https://doi.org/10.1017/jfm.2024.525","url":null,"abstract":"<p><img href=\"S0022112024005251_figAb.png\" mimesubtype=\"png\" mimetype=\"image\" orientation=\"\" position=\"\" src=\"https://static.cambridge.org/content/id/urn%3Acambridge.org%3Aid%3Aarticle%3AS0022112024005251/resource/name/S0022112024005251_figAb.png?pub-status=live\" type=\"\"/></p>","PeriodicalId":15853,"journal":{"name":"Journal of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142207633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Transition delay in a Mach 6 boundary layer using steady blowing and suction strips 利用稳定吹气和吸气条在马赫数 6 边界层中的过渡延迟
IF 3.7 2区 工程技术
Journal of Fluid Mechanics Pub Date : 2024-08-20 DOI: 10.1017/jfm.2024.468
Christoph Hader, Hermann F. Fasel
{"title":"Transition delay in a Mach 6 boundary layer using steady blowing and suction strips","authors":"Christoph Hader, Hermann F. Fasel","doi":"10.1017/jfm.2024.468","DOIUrl":"https://doi.org/10.1017/jfm.2024.468","url":null,"abstract":"<p><img href=\"S0022112024004683_figAb.png\" mimesubtype=\"png\" mimetype=\"image\" orientation=\"\" position=\"\" src=\"https://static.cambridge.org/content/id/urn%3Acambridge.org%3Aid%3Aarticle%3AS0022112024004683/resource/name/S0022112024004683_figAb.png?pub-status=live\" type=\"\"/></p>","PeriodicalId":15853,"journal":{"name":"Journal of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142207639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Inertial particle focusing in fluid flow through spiral ducts: dynamics, tipping phenomena and particle separation 流体流经螺旋管道时的惯性颗粒聚焦：动力学、倾倒现象和颗粒分离
IF 3.7 2区 工程技术
Journal of Fluid Mechanics Pub Date : 2024-08-14 DOI: 10.1017/jfm.2024.487
Rahil N. Valani, Brendan Harding, Yvonne M. Stokes
{"title":"Inertial particle focusing in fluid flow through spiral ducts: dynamics, tipping phenomena and particle separation","authors":"Rahil N. Valani, Brendan Harding, Yvonne M. Stokes","doi":"10.1017/jfm.2024.487","DOIUrl":"https://doi.org/10.1017/jfm.2024.487","url":null,"abstract":"Small finite-size particles suspended in fluid flow through an enclosed curved duct can focus to points or periodic orbits in the two-dimensional duct cross-section. This particle focusing is due to a balance between inertial lift forces arising from axial flow and drag forces arising from cross-sectional vortices. The inertial particle focusing phenomenon has been exploited in various industrial and medical applications to passively separate particles by size using purely hydrodynamic effects. A fixed size particle in a circular duct with a uniform rectangular cross-section can have a variety of particle attractors, such as stable nodes/spirals or limit cycles, depending on the radius of curvature of the duct. Bifurcations occur at different radii of curvature, such as pitchfork, saddle-node and saddle-node infinite period (SNIPER), which result in variations in the location, number and nature of these particle attractors. By using a quasi-steady approximation, we extend the theoretical model of Harding <jats:italic>et al.</jats:italic> (<jats:italic>J. Fluid Mech.</jats:italic>, vol. 875, 2019, pp. 1–43) developed for the particle dynamics in circular ducts to spiral duct geometries with slowly varying curvature, and numerically explore the particle dynamics within. Bifurcations of particle attractors with respect to radius of curvature can be traversed within spiral ducts and give rise to a rich nonlinear particle dynamics and various types of tipping phenomena, such as bifurcation-induced tipping (B-tipping), rate-induced tipping (R-tipping) and a combination of both, which we explore in detail. We discuss implications of these unsteady dynamical behaviours for particle separation and propose novel mechanisms to separate particles by size in a non-equilibrium manner.","PeriodicalId":15853,"journal":{"name":"Journal of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142207753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Mechanism of vortex oscillation around a hemisphere–cylinder body 围绕半球形圆柱体的涡旋振荡机制
IF 3.7 2区 工程技术
Journal of Fluid Mechanics Pub Date : 2024-08-14 DOI: 10.1017/jfm.2024.526
Zhou-Yang Wang, Bao-Feng Ma
{"title":"Mechanism of vortex oscillation around a hemisphere–cylinder body","authors":"Zhou-Yang Wang, Bao-Feng Ma","doi":"10.1017/jfm.2024.526","DOIUrl":"https://doi.org/10.1017/jfm.2024.526","url":null,"abstract":"Previous studies have shown that low-frequency vortex oscillations occur around a hemisphere–cylinder body at different angles of attack, but the underlying mechanism is still unclear. In this study, we examine the origin of the vortex oscillation using numerical simulations and global linear stability analysis. The vortex oscillation is reproduced using numerical simulations, and the oscillatory modes are computed through dynamic mode decomposition (DMD). We obtain the base flow through a selective frequency damping method, which exhibits a pair of steady leeward vortices over the body. The four unstable modes are computed using a modified Arnoldi iteration. The antisymmetric mode with a Strouhal number of 0.105 is discovered to be responsible for the alternate oscillation of the vortex pair, and the mode with a Strouhal number of 0.220 corresponds to the in-phase vortex oscillation. Their frequencies have good agreement with the modes of DMD. The other two unstable modes with higher frequencies, one antisymmetric and one symmetric, are harmonic frequencies of the above two modes. The study conclusively verifies that the vortex oscillation over a hemisphere–cylinder body originates from a global flow instability.","PeriodicalId":15853,"journal":{"name":"Journal of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142207676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
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
请完成安全验证×
相关产品
×
本文献相关产品
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 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信