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相关论文: Flow reversal of the Stokes system with localized …

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We consider the Stokes system in the half-space with localized boundary data. We prove that a boundary layer separation point exists provided that a certain singular integral determined by the boundary data is negative. On the other hand,…

偏微分方程分析 · 数学 2026-05-12 Tongkeun Chang , Kyungkeun Kang

In this paper, we present a series of applications of the pointwise estimates of the (unrestricted) Green tensor of the nonstationary Stokes system in the half space, established in our previous work [CMP 2023]. First, we show the…

偏微分方程分析 · 数学 2024-07-10 Kyungkeun Kang , Baishun Lai , Chen-Chih Lai , Tai-Peng Tsai

For the Stokes system in the half space, Kang [Math.~Ann.~2005] showed that a solution generated by a compactly supported, H\"older continuous boundary flux may have unbounded normal derivatives near the boundary. In this paper we first…

偏微分方程分析 · 数学 2021-07-05 Kyungkeun Kang , Baishun Lai , Chen-Chih Lai , Tai-Peng Tsai

We derive refined estimates of the Green tensor of the stationary Stokes system in the half space. We then investigate the spatial asymptotics of stationary solutions of the incompressible Navier-Stokes equations in the half space. We also…

偏微分方程分析 · 数学 2016-06-15 Kyungkeun Kang , Hideyuki Miura , Tai-Peng Tsai

This article is devoted to the analysis of inverse source problems for Stokes systems in unbounded domains where the corresponding velocity flow is observed on a surface. Our main objective is to study the unique determination of general…

偏微分方程分析 · 数学 2024-08-01 Adel Blouza , Léo Glangetas , Yavar Kian , Van-Sang Ngo

We derive new formulas for the fundamental solutions of slow, viscous flow, governed by the Stokes equations, in a half-space. They are simpler than the classical representations obtained by Blake and collaborators, and can be efficiently…

流体动力学 · 物理学 2023-07-19 Zydrunas Gimbutas , Leslie Greengard , Shravan Veerapaneni

We study the Stokes system with the localized boundary data in the half-space. We are concerned with the local regularity of its solution near the boundary away from the support of the given boundary data which are product forms of each…

偏微分方程分析 · 数学 2023-07-06 Kyungkeun Kang , Chanhong Min

This paper is devoted to the well-posedness analysis of a nonstationary Stokes hemivariational inequality for an incompressible fluid flow described by the Stokes equations subject to a nonsmooth boundary condition of friction type…

数值分析 · 数学 2026-03-31 Weimin Han , Shengda Zeng

This study investigates unsteady boundary layer phenomena in electrically conducting fluids subjected to static magnetic fields. Using a semi-explicit similarity transformation method, the momentum equation associated with the Stokes stream…

流体动力学 · 物理学 2025-04-10 Jing-Yu Fu , Ming-Jiu Ni , Nian-Mei Zhang

We review the first and second boundary value problems for the Stokes system posed in a bounded Lipschitz domain in $\mathbb{R}^n.$ Particular attention is given to the mixed boundary condition: a Dirichlet condition is imposed for the…

偏微分方程分析 · 数学 2018-03-06 John Fabricius

Fluid and solute transfer in X-junctions between straight channels is shown to depend critically on the junction angle in the Stokes flow regime. Experimentally, water and a water-dye solution are injected at equal flow rates in two facing…

流体动力学 · 物理学 2015-06-04 Mario Cachile , Laurent Talon , Juan M. Gomba , Jean-Pierre Hulin , Harold Auradou

Stokes flow equations, used to model creeping flow, are a commonly used simplification of the Navier--Stokes equations. The simplification is valid for flows where the inertial forces are negligible compared to the viscous forces. In…

流体动力学 · 物理学 2023-01-03 Ingeborg G. Gjerde , Ridgway Scott

This paper provides asymptotic structure at spatial infinity of plane steady Stokes flow in exterior domains when the obstacle is rotating with constant angular velocity. The result shows that there is no longer Stokes paradox due to the…

偏微分方程分析 · 数学 2017-04-04 Toshiaki Hishida

We investigate theoretically on the basis of the steady Stokes equations for a viscous incompressible fluid the flow induced by a Stokeslet located on the centre axis of two coaxially positioned rigid disks. The Stokeslet is directed along…

Electron transport in two-dimensional conducting materials such as graphene, with dominant electron-electron interaction, exhibits unusual vortex flow that leads to a nonlocal current-field relation (negative resistance), distinct from the…

流体动力学 · 物理学 2021-02-22 Jonathan Mayzel , Victor Steinberg , Atul Varshney

Periodic travelling waves at the free surface of an incompressible inviscid fluid in two dimensions under gravity are numerically computed for an arbitrary vorticity distribution. The fluid domain over one period is conformally mapped from…

流体动力学 · 物理学 2025-02-26 Alex Doak , Vera Mikyoung Hur , Jean-Marc Vanden-Broeck

The results of an experimental investigation of a sphere performing torsional oscillations in a Stokes flow are presented. A novel experimental set up was developed which enabled the motion of the sphere to be remotely controlled through…

流体动力学 · 物理学 2016-01-20 F. Box , A. B. Thompson , T. Mullin

The paper presents numerical methods for unsteady flows of a viscous incompressible fluid in internal domains with many inlet/outlet sections. The novel variants of dissipative boundary conditions augmented by the inertia terms are used at…

计算物理 · 物理学 2019-12-10 Jacek Szumbarski

We model incompressible flows with an adaptive stabilized finite element method Stokes flows, which solves a discretely stable saddle-point problem to approximate the velocity-pressure pair. Additionally, this saddle-point problem delivers…

数值分析 · 数学 2020-11-19 Felix Kyburg , Sergio Rojas , Victor M. Calo

We prove the first ever pointwise estimates of the (unrestricted) Green tensor and the associated pressure tensor of the nonstationary Stokes system in the half-space, for every space dimension greater than one. The force field is not…

偏微分方程分析 · 数学 2022-12-23 Kyungkeun Kang , Baishun Lai , Chen-Chih Lai , Tai-Peng Tsai
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