Annual Review of Fluid Mechanics最新文献_第7页

Advancing Access to Cutting-Edge Tabletop Science 推进访问尖端桌面科学

IF 27.7 1区工程技术

Annual Review of Fluid Mechanics Pub Date : 2022-09-28 DOI: 10.1146/annurev-fluid-120720-025348

M. Schatz, Pietro Cicuta, V. Gordon, T. Pilizota, B. Rodenborn, M. Shattuck, H. Swinney

引用次数: 2

Immersed Boundary Methods: Historical Perspective and Future Outlook 浸没边界法:历史与未来展望

IF 27.7 1区工程技术

Annual Review of Fluid Mechanics Pub Date : 2022-09-23 DOI: 10.1146/annurev-fluid-120720-022129

R. Verzicco

{"title":"Immersed Boundary Methods: Historical Perspective and Future Outlook","authors":"R. Verzicco","doi":"10.1146/annurev-fluid-120720-022129","DOIUrl":"https://doi.org/10.1146/annurev-fluid-120720-022129","url":null,"abstract":"Immersed boundary methods (IBMs) are versatile and efficient computational techniques to solve flow problems in complex geometric configurations that retain the simplicity and efficiency of Cartesian structured meshes. Although these methods became known in the 1970s and gained credibility only in the new millennium, they had already been conceived and implemented at the beginning of the 1960s, even if the early computers of those times did not allow researchers to exploit their potential. Nowadays IBMs are established numerical schemes employed for the solution of many complex problems in which fluid mechanics may account for only part of the multiphysics dynamics. Despite the indisputable advantages, these methods also have drawbacks, and each problem should be carefully analyzed before deciding which particular IBM implementation is most suitable and whether additional modeling is necessary. High–Reynolds number flows constitute one of the main limitations of IBMs owing to the resolution of thin wall shear layers, which cannot benefit from anisotropic grid refinement at the boundaries. To alleviate this weakness, researchers have developed IBM-compliant wall models and local grid refinement strategies, although in these cases possible pitfalls must also be considered. Expected final online publication date for the Annual Review of Fluid Mechanics, Volume 55 is January 2023. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.","PeriodicalId":50754,"journal":{"name":"Annual Review of Fluid Mechanics","volume":"1 1","pages":""},"PeriodicalIF":27.7,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41583864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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: 21

Submesoscale Dynamics in the Upper Ocean 上层海洋的亚中尺度动力学

IF 27.7 1区工程技术

Annual Review of Fluid Mechanics Pub Date : 2022-09-23 DOI: 10.1146/annurev-fluid-031422-095147

John R. Taylor, A. Thompson

{"title":"Submesoscale Dynamics in the Upper Ocean","authors":"John R. Taylor, A. Thompson","doi":"10.1146/annurev-fluid-031422-095147","DOIUrl":"https://doi.org/10.1146/annurev-fluid-031422-095147","url":null,"abstract":"Oceanic motions with spatial scales of 200 m–20 km, called submesoscales, are ubiquitous in the upper ocean and serve as a key intermediary between larger-scale balanced dynamics and unbalanced turbulence. Here, we introduce the fluid dynamics of submesoscales and contrast them with motions at larger and smaller scales. We summarize the various ways in which submesoscales develop due to instabilities that extract potential or kinetic energy from larger-scale balanced currents; some instabilities have counterparts at larger scales, while others are distinct to the submesoscale regime. Submesoscales modify the density stratification in the upper ocean and redistribute energy between scales. These energy transfers are complex, having both up-scale and down-scale components. Submesoscale eddies and fronts also contribute to a spatially heterogeneous distribution of shear and restratification that leave an imprint on upper ocean turbulence. The impact of submesoscales on the Earth's climate remains an exciting frontier. Expected final online publication date for the Annual Review of Fluid Mechanics, Volume 55 is January 2023. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.","PeriodicalId":50754,"journal":{"name":"Annual Review of Fluid Mechanics","volume":" ","pages":""},"PeriodicalIF":27.7,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46758975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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: 11

New Insights into Turbulent Spots 对湍流点的新见解

IF 27.7 1区工程技术

Annual Review of Fluid Mechanics Pub Date : 2022-09-21 DOI: 10.1146/annurev-fluid-120720-021813

Xiaohua Wu

引用次数: 4

Fluid Mechanics in France in the First Half of the Twentieth Century 20世纪上半叶法国的流体力学

IF 27.7 1区工程技术

Annual Review of Fluid Mechanics Pub Date : 2022-06-30 DOI: 10.1146/annurev-fluid-120720-010041

F. Charru

{"title":"Fluid Mechanics in France in the First Half of the Twentieth Century","authors":"F. Charru","doi":"10.1146/annurev-fluid-120720-010041","DOIUrl":"https://doi.org/10.1146/annurev-fluid-120720-010041","url":null,"abstract":"If one opens today a textbook on fluid mechanics, it seems that whereas French scientists of the eighteenth and nineteenth centuries are frequently mentioned, those from more recent times occur rarely; in particular, French contributions to the major breakthroughs of the first half of the twentieth century (boundary layers and turbulence) would appear quite modest. However, study of contemporary documents (PhD theses, journals, correspondence, etc.) reveals remarkable work undertaken by outstanding personalities. A key instigator of these achievements was the French Air Ministry, which, starting in 1929, and with great open-mindedness, created and generously financed four Institutes of Fluid Mechanics and five teaching centers in faculties of science. This reveals the 1930s in their true light as a fruitful decade, with achievements that explain the prominent role played by France in the creation of the International Union of Theoretical and Applied Mechanics (IUTAM) in 1946. This review recounts the story of fluid mechanics in France, with emphasis on the connection between scientific questions and social and cultural issues, in a period marked by two world wars and great strengthening of international relationships. Expected final online publication date for the Annual Review of Fluid Mechanics, Volume 55 is January 2023. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.","PeriodicalId":50754,"journal":{"name":"Annual Review of Fluid Mechanics","volume":" ","pages":""},"PeriodicalIF":27.7,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46930722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Recent Developments in Theories of Inhomogeneous and Anisotropic Turbulence 非均匀和各向异性湍流理论的最新进展

IF 27.7 1区工程技术

Annual Review of Fluid Mechanics Pub Date : 2022-05-11 DOI: 10.1146/annurev-fluid-120720-031006

J. Marston, S. Tobias

引用次数: 14

Self-Propulsion of Chemically Active Droplets 化学活性液滴的自推进

IF 27.7 1区工程技术

Annual Review of Fluid Mechanics Pub Date : 2022-04-19 DOI: 10.1146/annurev-fluid-120720-012204

S. Michelin

{"title":"Self-Propulsion of Chemically Active Droplets","authors":"S. Michelin","doi":"10.1146/annurev-fluid-120720-012204","DOIUrl":"https://doi.org/10.1146/annurev-fluid-120720-012204","url":null,"abstract":"Microscopic active droplets are able to swim autonomously in viscous flows. This puzzling feature stems from solute exchanges with the surrounding fluid via surface reactions or their spontaneous solubilization and from the interfacial flows resulting from these solutes’ gradients. Contrary to asymmetric active colloids, these isotropic droplets swim spontaneously by exploiting the nonlinear coupling of solute transport with self-generated Marangoni flows; such coupling is also responsible for secondary transitions to more complex individual and collective dynamics. Thanks to their simple design and their sensitivity to physico-chemical signals, these droplets are fascinating to physicists, chemists, biologists, and fluid dynamicists alike in analyzing viscous self-propulsion and collective dynamics in active-matter systems, developing synthetic cellular models, or performing targeted biomedical or engineering applications. I review here the most recent and significant developments of this rapidly growing field, focusing on the mathematical and physical modeling of these intriguing droplets, together with their experimental design and characterization. Expected final online publication date for the Annual Review of Fluid Mechanics, Volume 55 is January 2023. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.","PeriodicalId":50754,"journal":{"name":"Annual Review of Fluid Mechanics","volume":" ","pages":""},"PeriodicalIF":27.7,"publicationDate":"2022-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43844153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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: 41

FLEET Velocimetry for Aerodynamics 用于空气动力学的FLEET速度计

IF 27.7 1区工程技术

Annual Review of Fluid Mechanics Pub Date : 2022-01-05 DOI: 10.1146/annurev-fluid-032321-025544

P. Danehy, R. Burns, D. Reese, Jonathan E Retter, S. Kearney

引用次数: 8

The Influence of Boundaries on Gravity Currents and Thin Films: Drainage, Confinement, Convergence, and Deformation Effects 边界对重力流和薄膜的影响：排水、约束、收敛和变形效应

IF 27.7 1区工程技术

Annual Review of Fluid Mechanics Pub Date : 2022-01-05 DOI: 10.1146/annurev-fluid-030121-025957

Z. Zheng, H. Stone

引用次数: 13

WITHDRAWN: Strategic evaluation of local ethics and culture in shaping entrepreneurial economic development in various businesses and its impact on finance management during COVID-19 outbreaks. 撤回：对当地道德和文化在塑造各种企业的创业经济发展方面的战略评估及其对 COVID-19 爆发期间财务管理的影响。

1区工程技术

Annual Review of Fluid Mechanics Pub Date : 2021-12-17 DOI: 10.1016/j.matpr.2021.12.201

S Vijayalakshmi, M S Priyadarshini, Vivek Verma, Mohammed Faez Hasan, S Durga, Venkateswararao Podile

引用次数: 0