Showing papers in "Annual Review of Fluid Mechanics in 2021"
TL;DR: A new frontier and the rich multiscale fluid physics, from interfacial to multiphase and complex flows, that govern contact between an infected source and a susceptible target in a range of diseases are highlighted.
Abstract: For an infectious disease such as the coronavirus disease 2019 (COVID-19) to spread, contact needs to be established between an infected host and a susceptible one. In a range of populations and in...
173 citations
TL;DR: Nanofluidics has firmly established itself as a new field in fluid mechanics, as novel properties have been shown to emerge in fluids at the nanometric scale as mentioned in this paper, thanks to recent developments in fabri...
Abstract: Nanofluidics has firmly established itself as a new field in fluid mechanics, as novel properties have been shown to emerge in fluids at the nanometric scale. Thanks to recent developments in fabri...
140 citations
TL;DR: In this article, the authors studied how turbulence leads to the enhanced irreversible transport of heat and other scalars such as salt and pollutants in density-stratified fluids, and proposed a model to understand how these scalars are transferred.
Abstract: Understanding how turbulence leads to the enhanced irreversible transport of heat and other scalars such as salt and pollutants in density-stratified fluids is a fundamental and central problem in
108 citations
TL;DR: In this paper, the addition of macromolecules to a solvent imparts viscoelasticity to the solvability of complex fluids, which can be used for specific applications.
Abstract: Complex fluids exist in nature and are continually engineered for specific applications involving the addition of macromolecules to a solvent, among other means. This imparts viscoelasticity to the...
100 citations
TL;DR: In this article, the authors present a full-scale prediction of drag due to rough wall-bounded turbulent fluid flow remains a challenge and the uncertainty is at least 10% with consequences, for example, on energy and...
Abstract: Reliable full-scale prediction of drag due to rough wall-bounded turbulent fluid flow remains a challenge. Currently, the uncertainty is at least 10%, with consequences, for example, on energy and ...
95 citations
TL;DR: A viscous solvent laminar flow may be strongly modified by the addition of a tiny amount of long polymer molecules, resulting in a chaotic flow called elastic turbulence (ET) as mentioned in this paper.
Abstract: A viscous solvent laminar flow may be strongly modified by the addition of a tiny amount of long polymer molecules, resulting in a chaotic flow called elastic turbulence (ET) ET is attributed to p
95 citations
TL;DR: Transient growth and resolvent analyses are routinely used to assess nonasymptotic properties of fluid flows as discussed by the authors, which can be interpreted as a special case of viewing flow.
Abstract: Transient growth and resolvent analyses are routinely used to assess nonasymptotic properties of fluid flows. In particular, resolvent analysis can be interpreted as a special case of viewing flow ...
88 citations
TL;DR: In this article, a review examines large eddy simulation (LES) models from the perspective of their a priori statistical characteristics and the most well-known statistical characteristic of an LES subgrid-scale mo...
Abstract: This review examines large eddy simulation (LES) models from the perspective of their a priori statistical characteristics. The most well-known statistical characteristic of an LES subgrid-scale mo...
68 citations
TL;DR: Wall-bounded turbulence exhibits patterns that persist in time and space: coherent structures as mentioned in this paper, which are important for transport processes and form a conceptual framework for important theoretical studies of transport processes.
Abstract: Wall-bounded turbulence exhibits patterns that persist in time and space: coherent structures. These are important for transport processes and form a conceptual framework for important theoretical ...
61 citations
TL;DR: In this paper, extreme events in fluid flows, waves, or structures interacting with them are critical for a wide range of areas, including reliability and design in engineering, as well as modeling risk of natura...
Abstract: Extreme events in fluid flows, waves, or structures interacting with them are critical for a wide range of areas, including reliability and design in engineering, as well as modeling risk of natura...
60 citations
TL;DR: Oceanic lee waves are generated in the deep stratified ocean by the flow of ocean currents over sea floor topography, and when they break, they can lead to mixing in the stably stratified oceans as discussed by the authors.
Abstract: Oceanic lee waves are generated in the deep stratified ocean by the flow of ocean currents over sea floor topography, and when they break, they can lead to mixing in the stably stratified ocean int...
TL;DR: Sediment-laden gravity currents, or turbidity currents, are density-driven flows that transport vast quantities of particulate material across the floor of lakes and oceans.
Abstract: Sediment-laden gravity currents, or turbidity currents, are density-driven flows that transport vast quantities of particulate material across the floor of lakes and oceans. Turbidity currents are ...
TL;DR: In this paper, the authors review studies of levitating droplets over liquid-gas interfaces and dry solid surfaces with a focus on the physical mechanisms of levitation under different conditions.
Abstract: We review studies of levitating droplets over liquid–gas interfaces and dry solid surfaces with a focus on the physical mechanisms of levitation under different conditions. A fascinating physical p...
TL;DR: In this article, the fundamental fluid mechanics of placing mechanical devices into fast-moving tidal streams to generate clean and predictable electricity is discussed, and a review of the applicability of this technology is presented.
Abstract: Placing mechanical devices into fast-moving tidal streams to generate clean and predictable electricity is a developing technology. This review covers the fundamental fluid mechanics of this applic...
TL;DR: The removal of unwanted entities or soiling material from surfaces is an essential operation in many personal, industrial, societal, and environmental applications as discussed by the authors, and the use of liquid cleansers for this purpose is a common practice in many of these applications.
Abstract: The removal of unwanted entities or soiling material from surfaces is an essential operation in many personal, industrial, societal, and environmental applications. The use of liquid cleansers for ...
TL;DR: A review focusing on Leonardo da Vinci's work and thought related to fluid mechanics as it is presented in a lifetime of notebooks, letters, and artwork is given in this article.
Abstract: This review focuses on Leonardo da Vinci's work and thought related to fluid mechanics as it is presented in a lifetime of notebooks, letters, and artwork. It shows how Leonardo's remaining works o...
TL;DR: The use of X-ray flow visualization has brought a powerful new tool to the study of multiphase flows as discussed by the authors, which can probe the spatial concentration of the different phases without the r...
Abstract: The use of X-ray flow visualization has brought a powerful new tool to the study of multiphase flows. Penetrating radiation can probe the spatial concentration of the different phases without the r...
TL;DR: In this paper, the dramatic variations in wake structures and flow transitions, in addition to body forces, that appear as the motion of bluff bodies through a fluid occurs increasingly closer, are surveyed.
Abstract: This review surveys the dramatic variations in wake structures and flow transitions, in addition to body forces, that appear as the motion of bluff bodies through a fluid occurs increasingly closer...
TL;DR: This work states that from intracellular protein signaling to embryonic symmetry-breaking, fluid transport ubiquitously drives biological events in living systems.
Abstract: From intracellular protein signaling to embryonic symmetry-breaking, fluid transport ubiquitously drives biological events in living systems. We provide an overview of the fundamental fluid mechani...
Journal Article•