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相关论文: On shear flow stabilization concepts for the dense…

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We prove that, in a two-dimensional strip, a steady flow of an ideal incompressible fluid with no stationary point and tangential boundary conditions is a shear flow. The same conclusion holds for a bounded steady flow in a half-plane. The…

偏微分方程分析 · 数学 2015-09-16 François Hamel , Nikolai Nadirashvili

Motivated by the reported peculiar dynamics of a red blood cell in shear flow, we develop an analytical theory for the motion of a nearly--spherical fluid particle enclosed by a visco--elastic incompressible interface in linear flows. The…

流体动力学 · 物理学 2010-07-06 Petia M. Vlahovska , Yuan-nan Young , Gerrit Danker , Chaouqi Misbah

We consider barotropic instability of shear flows for incompressible fluids with Coriolis effects. For a class of shear flows, we develop a new method to find the sharp stability conditions. We study the flow with Sinus profile in details…

偏微分方程分析 · 数学 2020-08-14 Zhiwu Lin , Jincheng Yang , Hao Zhu

The transport of slightly deformable chiral objects in a uniform shear flow is investigated. Depending on the equilibrium configuration one finds up to four different asymptotic states that can be distinguished by a lateral drift velocity…

软凝聚态物质 · 物理学 2012-07-06 Peter Talkner , Gert-Ludwig Ingold , Peter Hanggi

In many plasma systems, introducing a small background shear flow is enough to stabilize the system linearly. The nonlinear dynamics are much less sensitive to sheared flows than the average linear growthrates, and very small amplitude…

等离子体物理 · 物理学 2018-01-17 Chris C. T. Pringle , Ben F. McMillan , Bogdan Teaca

In this article, we provide a brief perspective on recent developments in the study of shear thickening in dense suspensions. We give a rapid overview of the state of the art and discuss current models aiming to describe this particular…

软凝聚态物质 · 物理学 2025-07-23 Cécile Clavaud , Abhinendra Singh

The linear stability of a shear layer in a highly diffusive stably stratified atmosphere has been investigated. This study completes and extends previous works by Dudis (1974) and Jones (1977). We show that: (i) an asymptotic regime is…

天体物理学 · 物理学 2007-05-23 F. Lignieres , F. Califano , A. Mangeney

The shear shallow water model is an extension of the classical shallow water model to include the effects of vertical shear. It is a system of six non-linear hyperbolic PDE with non-conservative products. We develop a high-order entropy…

数值分析 · 数学 2023-10-03 Anshu Yadav , Deepak Bhoriya , Harish Kumar , Praveen Chandrashekar

Shear thickening, an increase of viscosity with shear rate, is a ubiquitous phenomena in suspended materials that has implications for broad technological applications. Controlling this thickening behavior remains a major challenge and has…

软凝聚态物质 · 物理学 2017-02-08 Neil Y. C. Lin , Christopher Ness , Michael E. Cates , Jin Sun , Itai Cohen

We use a database of direct numerical simulations to evaluate parametrizations for energy dissipation rate in stably stratified flows. We show that shear-based formulations are more appropriate for stable boundary layers than commonly used…

大气与海洋物理 · 物理学 2020-08-25 Sukanta Basu , Ping He , Adam W DeMarco

The flow of a viscous fluid along a curving pipe of fixed radius is driven by a pressure gradient. For a generally curving pipe it is the fluid flux which is constant along the pipe and so I correct fluid flow solutions of Dean (1928) and…

斑图形成与孤子 · 物理学 2009-11-10 A. J. Roberts

We consider spin polarization of massless fermions in a shear flow, whose complete contributions contain magnetization current and side-jump current known from collisional chiral kinetic theory. We argue that the side-jump current adopts…

高能物理 - 唯象学 · 物理学 2024-06-18 Shu Lin , Ziyue Wang

Dense suspensions of hard particles in a Newtonian liquid can be jammed by shear when the applied stress exceeds a certain threshold. However, this jamming transition from a fluid into a solidified state cannot be probed with conventional…

软凝聚态物质 · 物理学 2019-12-18 Endao Han , Nicole M. James , Heinrich M. Jaeger

Dense suspensions of deformable particles can exhibit rich nonequilibrium dynamics arising from complex flow-structure coupling. Using a multi-phase field model, we show that steady shear drives an initially disordered, dense, soft…

软凝聚态物质 · 物理学 2026-02-10 Ioannis Hadjifrangiskou , Rahil N. Valani , Diogo E. P. Pinto

A two-dimensional plasma crystal was melted by suddenly applying localized shear stress. A stripe of particles in the crystal was pushed by the radiation pressure force of a laser beam. We found that the response of the plasma crystal to…

软凝聚态物质 · 物理学 2015-06-12 V. Nosenko , A. V. Ivlev , G. E. Morfill

In stellar interiors shear flows play an important role in many physical processes. So far helioseismology provides only large-scale measurements, and so the small-scale dynamics remains insufficiently understood. To draw a connection…

太阳与恒星天体物理 · 物理学 2016-12-01 V. Witzke , L. J. Silvers

A theory is presented for the onset of shear thickening in colloidal suspensions of particles, stabilized by an electrostatic repulsion. Based on an activation model a critical shear stress can be derived for the onset of shear thickening…

软凝聚态物质 · 物理学 2011-07-26 Joachim Kaldasch , Bernhard Senge , Jozua Laven

Experiments of particle-laden inclined film flow [Zhou, Dupuy, Bertozzi, and Hosoi, Phys. Rev. Lett. 94 (2005)] have displayed different settling behaviors depending on the particle concentration $\phi$ and angle of inclination $\theta$, in…

流体动力学 · 物理学 2009-11-13 Benjamin P. Cook

Dense particulate suspensions often become more dilute as they move downstream through a constriction. We find that as a shear-thickening suspension is extruded through a narrow die and undergoes such liquid migration, the extrudate…

软凝聚态物质 · 物理学 2019-09-25 Rory E. O'Neill , John R. Royer , Wilson C. K. Poon

We employ a multi-phase smoothed particle hydrodynamics (SPH) method to study droplet dynamics in shear flow. With an extensive range of Reynolds number, capillary number, wall confinement, and density/viscosity ratio between the droplet…

流体动力学 · 物理学 2023-07-07 Kuiliang Wang , Hong Liang , Chong Zhao , Xin Bian