The Sobolev Stability Threshold for 2D Shear Flows Near Couette
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Nonlinear Science"
DOI: 10.1007/s00332-016-9330-9
Abstract: We consider the 2D Navier–Stokes equation on $$\mathbb T \times \mathbb R$$T×R, with initial datum that is $$\varepsilon $$ε-close in $$H^N$$HN to a shear flow (U(y), 0), where $$\Vert U(y) - y\Vert _{H^{N+4}} \ll 1$$‖U(y)-y‖HN+4≪1 and… read more here.
Keywords: flows near; sobolev stability; shear flows; threshold shear ... See more keywords
Stationary Shear Flows of Nematic Liquid Crystals: A Comprehensive Study via Ericksen–Leslie Model
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Dynamics and Differential Equations"
DOI: 10.1007/s10884-021-09958-4
Abstract: We apply the Ericksen–Leslie dynamic model to investigate stationary solutions of planar shear flows for nematic liquid crystals. Nematic material is extremely rich and involves several parameters to characterize the basic local properties. The Ericksen–Leslie… read more here.
Keywords: leslie model; liquid crystals; ericksen leslie; flows nematic ... See more keywords
On the Long Wave Stability of Shear Flows in Sea Straits of Arbitrary Cross Section
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Applied and Computational Mathematics"
DOI: 10.1007/s40819-017-0439-9
Abstract: We consider an eigen value problem of hydrodynamic stability which deals with inviscid, incompressible, density stratified shear flows of variable topography. In this paper, we obtained a condition for long wave stability i.e., if the… read more here.
Keywords: wave stability; shear flows; stability shear; long wave ... See more keywords
A model for the depletion layer prediction in a dilute suspension of rigid rod-like particles under shear flows in the entire range of Peclet numbers
Sign Up to like & getrecommendations! Published in 2018 at "Chemical Engineering Science"
DOI: 10.1016/j.ces.2018.05.059
Abstract: Abstract We derived a model to predict the concentration profile, or the center-of-mass distribution, of rod-like particles near a wall under shear flows. Various excluded volume mechanisms of a rod near a wall for each… read more here.
Keywords: peclet; rod like; peclet numbers; shear flows ... See more keywords
A 3D isogeometric BE-FE analysis with dynamic remeshing for the simulation of a deformable particle in shear flows
Sign Up to like & getrecommendations! Published in 2017 at "Computer Methods in Applied Mechanics and Engineering"
DOI: 10.1016/j.cma.2017.08.003
Abstract: Abstract A three-dimensional isogeometric coupled boundary element and finite element approach based on analysis suitable T-splines is developed for the simulation of deformable capsules suspended in shear flows. Boundary element analysis is used to solve… read more here.
Keywords: analysis; shear flows; isogeometric analysis; membrane ... See more keywords
Microstructure and thickening of dense suspensions under extensional and shear flows
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2017.469
Abstract: Dense suspensions are non-Newtonian fluids that exhibit strong shear thickening and normal stress differences. Using numerical simulation of extensional and shear flows, we investigate how rheological properties are determined by the microstructure that is built… read more here.
Keywords: thickening dense; suspensions extensional; dense suspensions; microstructure thickening ... See more keywords
A framework for input–output analysis of wall-bounded shear flows
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2019.418
Abstract: We propose a new framework to evaluate input–output amplification properties of nonlinear models of wall-bounded shear flows, subject to both square integrable and persistent disturbances. We focus on flows that are spatially invariant in one… read more here.
Keywords: input output; input; shear flows; bounded shear ... See more keywords
Dynamics of flexible filaments in oscillatory shear flows
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2022.1040
Abstract: Abstract The fluid–structure interactions between flexible fibres and viscous flows play an essential role in various biological phenomena, medical problems and industrial processes. Of particular interest is the case of particles transported freely in time-dependent… read more here.
Keywords: dynamics flexible; shear flows; orientation; oscillatory shear ... See more keywords
Instability in centrifugally stable shear flows
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2025.114
Abstract: Abstract We investigate the linear instability of flows that are stable according to Rayleigh’s criterion for rotating fluids. Using Taylor–Couette flow as a primary test case, we develop large-Reynolds-number-matched asymptotic expansion theories. Our theoretical results… read more here.
Keywords: stable shear; centrifugally stable; instability; shear flows ... See more keywords
Deep Learning Emulation of Subgrid‐Scale Processes in Turbulent Shear Flows
Sign Up to like & getrecommendations! Published in 2020 at "Geophysical Research Letters"
DOI: 10.1029/2020gl087005
Abstract: Deep neural networks (DNNs) are developed from a data set obtained from the dynamic Smagorinsky model to emulate the subgrid‐scale (SGS) viscosity (νsgs) and diffusivity (κsgs) for turbulent stratified shear flows encountered in the oceans… read more here.
Keywords: scale processes; subgrid scale; shear flows; sgs ... See more keywords
Field-induced control of the breakup of ferrofluid droplets in planar extensional and simple shear flows
Sign Up to like & getrecommendations! Published in 2025 at "Physics of Fluids"
DOI: 10.1063/5.0288138
Abstract: This study investigates the breakup of ferrofluid droplets in both planar extensional and simple shear flows under the influence of external magnetic fields. Using a three-dimensional model, we analyze the impact of the external field… read more here.
Keywords: breakup; simple shear; planar extensional; shear flows ... See more keywords