发布求助
文献互助 智能选刊 最新文献

Annual Review of Fluid Mechanics最新文献

筛选
英文 中文
Rapidly Rotating Magnetohydrodynamics and the Geodynamo 快速旋转磁流体力学和地球动力
IF 27.7 1区 工程技术
Annual Review of Fluid Mechanics Pub Date : 2024-10-01 DOI: 10.1146/annurev-fluid-031224-121649
Emmanuel Dormy
{"title":"Rapidly Rotating Magnetohydrodynamics and the Geodynamo","authors":"Emmanuel Dormy","doi":"10.1146/annurev-fluid-031224-121649","DOIUrl":"https://doi.org/10.1146/annurev-fluid-031224-121649","url":null,"abstract":"The problem of the geodynamo is simple to formulate (Why does the Earth possess a magnetic field?), yet it proves surprisingly hard to address. As with most geophysical flows, the fluid flow of molten iron in the Earth's core is strongly influenced by the Coriolis effect. Because the liquid is electrically conducting, it is also strongly influenced by the Lorentz force. The balance is unusual in that, whereas each of these effects considered separately tends to impede the flow, the magnetic field in the Earth's core relaxes the effect of the rapid rotation and allows the development of a large-scale flow in the core that in turn regenerates the field. This review covers some recent developments regarding the interplay between rotation and magnetic fields and how it affects the flow in the Earth's core.","PeriodicalId":50754,"journal":{"name":"Annual Review of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":27.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142362790","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
Turbulence from an Observer Perspective 从观察者的角度看湍流
IF 27.7 1区 工程技术
Annual Review of Fluid Mechanics Pub Date : 2024-09-30 DOI: 10.1146/annurev-fluid-030424-114735
Tamer A. Zaki
{"title":"Turbulence from an Observer Perspective","authors":"Tamer A. Zaki","doi":"10.1146/annurev-fluid-030424-114735","DOIUrl":"https://doi.org/10.1146/annurev-fluid-030424-114735","url":null,"abstract":"Turbulence is often studied by tracking its spatiotemporal evolution and analyzing the dynamics of its different scales. The dual to this perspective is that of an observer who starts from measurements, or observations, of turbulence and attempts to identify their back-in-time origin, which is the foundation of data assimilation. This back-in-time search must contend with the action of chaos, which obfuscates the interpretation of the observations. When the available measurements satisfy a critical resolution threshold, the influence of chaos can be entirely mitigated and turbulence can be synchronized to the exact state–space trajectory that generated the observations. The critical threshold offers a new interpretation of the Taylor microscale, one that underscores its causal influence. Below the critical threshold, the origin of measurements becomes less definitive in regions where the flow is inconsequential to the observations. In contrast, flow events that influence the measurements, or are within their domain of dependence, are accurately captured. The implications for our understanding of wall turbulence are explored, starting with the highest density of measurements that entirely tame chaos and proceeding all the way to an isolated measurement of wall stress. The article concludes with a discussion of future opportunities and a call to action.","PeriodicalId":50754,"journal":{"name":"Annual Review of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":27.7,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142360118","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
Vortex-Induced Vibration of Flexible Cylinders in Cross-Flow 横流中柔性圆筒的涡流诱导振动
IF 27.7 1区 工程技术
Annual Review of Fluid Mechanics Pub Date : 2024-09-30 DOI: 10.1146/annurev-fluid-022724-014235
Francisco Huera-Huarte
{"title":"Vortex-Induced Vibration of Flexible Cylinders in Cross-Flow","authors":"Francisco Huera-Huarte","doi":"10.1146/annurev-fluid-022724-014235","DOIUrl":"https://doi.org/10.1146/annurev-fluid-022724-014235","url":null,"abstract":"This review provides a comprehensive analysis of the literature on vortex-induced vibration (VIV) of flexible circular cylinders in cross-flow. It delves into the details of the underlying physics governing the VIV dynamics of cylinders characterized by low mass damping and high aspect ratio, subject to both uniform and shear flows. It compiles decades of experimental investigations, modeling efforts, and numerical simulations and describes the fundamental findings in the field. Key focal points include but are not limited to amplitude–frequency response behavior, the relationship between the distributed loading acting on the cylinder and the trajectories and the near wake structures around the cylinder, the existence of traveling waves, the identification of power-in/power-out regions, and the modal overlapping and mode competition phenomena.","PeriodicalId":50754,"journal":{"name":"Annual Review of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":27.7,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142360117","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
Physicochemical Hydrodynamics of Particle Diffusiophoresis Driven by Chemical Gradients 化学梯度驱动的粒子扩散物理化学流体力学
IF 27.7 1区 工程技术
Annual Review of Fluid Mechanics Pub Date : 2024-09-26 DOI: 10.1146/annurev-fluid-030424-110950
Jesse T. Ault, Sangwoo Shin
{"title":"Physicochemical Hydrodynamics of Particle Diffusiophoresis Driven by Chemical Gradients","authors":"Jesse T. Ault, Sangwoo Shin","doi":"10.1146/annurev-fluid-030424-110950","DOIUrl":"https://doi.org/10.1146/annurev-fluid-030424-110950","url":null,"abstract":"Chemical gradients, the spatial variations in chemical concentrations and components, are omnipresent in environments ranging from biological and environmental systems to industrial processes. These thermodynamic forces often play a central role in driving transport processes taking place in such systems. This review focuses on diffusiophoresis, a phoretic transport phenomenon driven by chemical gradients. We begin by revisiting the fundamental physicochemical hydrodynamics governing the transport. Then we discuss diffusiophoresis arising in flow systems found in natural and artificial settings. By exploring various scenarios where chemical gradients are encountered and exploited, we aim to demonstrate the significance of diffusiophoresis and its state-of-the-art development in technological applications.","PeriodicalId":50754,"journal":{"name":"Annual Review of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":27.7,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142321061","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
Freezing and Capillarity 冻结和毛细管
IF 27.7 1区 工程技术
Annual Review of Fluid Mechanics Pub Date : 2024-09-26 DOI: 10.1146/annurev-fluid-121021-111652
Axel Huerre, Christophe Josserand, Thomas Séon
{"title":"Freezing and Capillarity","authors":"Axel Huerre, Christophe Josserand, Thomas Séon","doi":"10.1146/annurev-fluid-121021-111652","DOIUrl":"https://doi.org/10.1146/annurev-fluid-121021-111652","url":null,"abstract":"Ice structures such as accretion on airplanes, wires, or roadways; ice falls; ice stalactites; frozen rivers; and aufeis are formed by the freezing of capillary flows (drops, rivulets, and films). To understand these phenomena, a detailed exploration of the complex coupling between capillary flow and solidification is necessary. Among the many scientific questions that remain open in order to understand these problems are the confinement of the thermal boundary layer by the free surface, the interaction between a freezing front and a free surface, the effect of freezing on the contact line motion, etc. This review focuses mainly on water and ice, discussing the theoretical framework and recent developments in the main areas of the freezing–capillarity interaction. The text deeply explores the freezing of a moving drop or a rivulet and the fundamental problem of wetting water on ice. Additionally, it highlights some of the main open questions on the subject.","PeriodicalId":50754,"journal":{"name":"Annual Review of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":27.7,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142321062","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
Fluid Mechanics of the Dead Sea 死海的流体力学
IF 27.7 1区 工程技术
Annual Review of Fluid Mechanics Pub Date : 2024-09-11 DOI: 10.1146/annurev-fluid-031424-101119
Eckart Meiburg, Nadav G. Lensky
{"title":"Fluid Mechanics of the Dead Sea","authors":"Eckart Meiburg, Nadav G. Lensky","doi":"10.1146/annurev-fluid-031424-101119","DOIUrl":"https://doi.org/10.1146/annurev-fluid-031424-101119","url":null,"abstract":"The environmental setting of the Dead Sea combines several aspects whose interplay creates flow phenomena and transport processes that cannot be observed anywhere else on Earth. As a terminal lake with a rapidly declining surface level, the Dead Sea has a salinity that is close to saturation, so that the buoyancy-driven flows common in lakes are coupled to precipitation and dissolution, and large amounts of salt are being deposited year-round. The Dead Sea is the only hypersaline lake deep enough to form a thermohaline stratification during the summer, which gives rise to descending supersaturated dissolved-salt fingers that precipitate halite particles. In contrast, during the winter the entire supersaturated, well-mixed water column produces halite. The rapid lake level decline of O(1 m/year) exposes vast areas of newly formed beach every year, which exhibit deep incisions from streams. Taken together, these phenomena provide insight into the enigmatic salt giants observed in the Earth's geological record and offer lessons regarding the stability, erosion, and protection of arid coastlines under sea level change.","PeriodicalId":50754,"journal":{"name":"Annual Review of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":27.7,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170868","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
Instabilities and Mixing in Inertial Confinement Fusion 惯性约束聚变中的不稳定性与混合
IF 27.7 1区 工程技术
Annual Review of Fluid Mechanics Pub Date : 2024-09-11 DOI: 10.1146/annurev-fluid-022824-110008
Ye Zhou, James D. Sadler, Omar A. Hurricane
{"title":"Instabilities and Mixing in Inertial Confinement Fusion","authors":"Ye Zhou, James D. Sadler, Omar A. Hurricane","doi":"10.1146/annurev-fluid-022824-110008","DOIUrl":"https://doi.org/10.1146/annurev-fluid-022824-110008","url":null,"abstract":"By imploding fuel of hydrogen isotopes, inertial confinement fusion (ICF) aims to create conditions that mimic those in the Sun's core. This is fluid dynamics in an extreme regime, with the ultimate goal of making nuclear fusion a viable clean energy source. The fuel must be reliably and symmetrically compressed to temperatures exceeding 100 million degrees Celsius. After the best part of a century of research, the foremost fusion milestone was reached in 2021, when ICF became the first technology to achieve an igniting fusion fuel (thermonuclear instability), and then in 2022 scientific energy breakeven was attained. A key trade-off of the ICF platform is that greater fuel compression leads to higher burn efficiency, but at the expense of amplified Rayleigh–Taylor and Richtmyer–Meshkov instabilities and kinetic-energy-wasting asymmetries. In extreme cases, these three-dimensional instabilities can completely break up the implosion. Even in the highest-yielding 2022 scientific breakeven experiment, high-atomic-number (high-Z) contaminants were unintentionally injected into the fuel. Here we review the pivotal role that fluid dynamics plays in the construction of a stable implosion and the decades of improved understanding and isolated experiments that have contributed to fusion ignition.","PeriodicalId":50754,"journal":{"name":"Annual Review of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":27.7,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170866","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
Multiscale Modeling of Respiratory Transport Phenomena and Intersubject Variability 呼吸传输现象和受试者间变异性的多尺度建模
IF 27.7 1区 工程技术
Annual Review of Fluid Mechanics Pub Date : 2024-08-27 DOI: 10.1146/annurev-fluid-031424-103721
Stavros C. Kassinos, Josué Sznitman
{"title":"Multiscale Modeling of Respiratory Transport Phenomena and Intersubject Variability","authors":"Stavros C. Kassinos, Josué Sznitman","doi":"10.1146/annurev-fluid-031424-103721","DOIUrl":"https://doi.org/10.1146/annurev-fluid-031424-103721","url":null,"abstract":"Our understanding of respiratory flow phenomena has been consolidated over decades with the exploration of in vitro and in silico canonical models that underscore the multiscale fluid mechanics spanning the vast airway complex. In recent years, there has been growing recognition of the significant intersubject variability characterizing the human lung morphometry that modulates underlying canonical flows across subjects. Despite outstanding challenges in modeling and validation approaches, exemplified foremost in capturing chronic respiratory diseases, the field is swiftly moving toward hybrid in silico whole-lung simulations that combine various model classes to resolve airflow and aerosol transport spanning the entire respiratory tract over cumulative breathing cycles. In the years to come, the prospect of accessible, community-curated datasets, in conjunction with the use of machine learning tools, could pave the way for in silico population-based studies to uncover unrecognized trends at the population level and deliver new respiratory diagnostic and pulmonary drug delivery endpoints.","PeriodicalId":50754,"journal":{"name":"Annual Review of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":27.7,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142084856","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
Geometric Approaches to Lagrangian Averaging 拉格朗日平均法的几何方法
IF 27.7 1区 工程技术
Annual Review of Fluid Mechanics Pub Date : 2024-08-15 DOI: 10.1146/annurev-fluid-030524-095913
Andrew D. Gilbert, Jacques Vanneste
{"title":"Geometric Approaches to Lagrangian Averaging","authors":"Andrew D. Gilbert, Jacques Vanneste","doi":"10.1146/annurev-fluid-030524-095913","DOIUrl":"https://doi.org/10.1146/annurev-fluid-030524-095913","url":null,"abstract":"Lagrangian averaging theories, most notably the generalized Lagrangian mean (GLM) theory of Andrews and McIntyre, have been primarily developed in Euclidean space and Cartesian coordinates. We reinterpret these theories using a geometric, coordinate-free formulation. This gives central roles to the flow map, its decomposition into mean and perturbation maps, and the momentum 1-form dual to the velocity vector. In this interpretation, the Lagrangian mean of any tensorial quantity is obtained by averaging its pull-back to the mean configuration. Crucially, the mean velocity is not a Lagrangian mean in this sense. It can be defined in a variety of ways, leading to alternative Lagrangian mean formulations that include GLM and Soward and Roberts's volume-preserving version. These formulations share key features that the geometric approach uncovers. We derive governing equations both for the mean flow and for wave activities constraining the dynamics of the perturbations. The presentation focuses on the Boussinesq model for inviscid rotating stratified flows and reviews the necessary tools of differential geometry.","PeriodicalId":50754,"journal":{"name":"Annual Review of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":27.7,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141991898","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
Clogging of Noncohesive Suspension Flows 非粘性悬浮液流的堵塞问题
IF 27.7 1区 工程技术
Annual Review of Fluid Mechanics Pub Date : 2024-07-31 DOI: 10.1146/annurev-fluid-030124-112742
Alvaro Marin, Mathieu Souzy
{"title":"Clogging of Noncohesive Suspension Flows","authors":"Alvaro Marin, Mathieu Souzy","doi":"10.1146/annurev-fluid-030124-112742","DOIUrl":"https://doi.org/10.1146/annurev-fluid-030124-112742","url":null,"abstract":"When flowing through narrow channels or constrictions, many-body systems exhibit various flowing patterns, yet they can also get stuck. In many of these systems, the flowing elements remain as individuals (they do not aggregate or merge), sharing strong analogies among each other. This is the case for systems as contrasting as grains in a silo and pedestrians passing through tight spaces. Interestingly, when these entities flow within a fluid medium, numerous similarities persist. However, the fluid dynamics aspects of such clogging events, such as interstitial flow, liquid pressure, and hydrodynamic interactions, has only recently begun to be explored. In this review, we describe parallels with dry granular clogging and extensively analyze phenomena emerging when particles coexist with fluid in the system. We discuss the influence of diverse flow drive, particle propulsion mechanisms, and particle characteristics, and we conclude with examples from nature.","PeriodicalId":50754,"journal":{"name":"Annual Review of Fluid Mechanics","volume":null,"pages":null},"PeriodicalIF":27.7,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141862126","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
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