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In this paper, we investigate the global solvability of the chemotaxis-Navier-Stokes system on a three-dimensional moving domain of finite depth, bounded below by a rigid flat bottom and bounded above by the free surface. Completing the…

偏微分方程分析 · 数学 2021-03-09 Qianqian Hou

We study a boundary layer problem for the Navier-Stokes-alpha model obtaining a generalization of the Prandtl equations conjectured to represent the averaged flow in a turbulent boundary layer. We solve the equations for the semi-infinite…

混沌动力学 · 物理学 2007-05-23 A. Cheskidov

We consider the free boundary problem for a layer of compressible viscous barotropic fluid lying above a fixed rigid bottom and below the atmosphere of positive constant pressure. The fluid dynamics is governed by the compressible…

偏微分方程分析 · 数学 2024-11-01 Ting Sun , Yanjin Wang

This paper details the development and application of an $h$-adaptive finite element method for the numerical solution of the \textit{Falkner-Skan equation}. A posteriori error estimation governs the adaptivity of the mesh, specifically the…

数值分析 · 数学 2025-08-06 B. Veena S. N. Rao

We study a generalization of the Navier-Stokes-Fourier system for an incompressible fluid where the deviatoric part of the Cauchy stress tensor is related to the symmetric part of the velocity gradient via a maximal monotone 2-graph that is…

偏微分方程分析 · 数学 2017-05-02 Erika Maringová , Josef Žabenský

A deterministic theory describing the behavior of an ultrathin lubricant film between two atomically-smooth solid surfaces is proposed. For the description of lubricant state the parameter of excess volume arising due to chaotization of…

统计力学 · 物理学 2011-03-30 I. A. Lyashenko , A. V. Khomenko , L. S. Metlov

In this paper, we study a free boundary problem for compressible spherically symmetric Navier-Stokes equations without a solid core. Under certain assumptions imposed on the initial data, we obtain the global existence and uniqueness of the…

偏微分方程分析 · 数学 2007-06-13 Ting Zhang , Daoyuan Fang

We show that if u is a weak solution to the Navier-Stokes initial-boundary value problem with Navier's slip boundary conditions in $Q_T:=\Omega\times(0,T)$, where $\Omega$ is a domain in $R^3$, then an associated pressure $p$ exists as a…

偏微分方程分析 · 数学 2020-07-15 Jiri Neustupa , Sarka Necasova , Petr Kucera

We address convergence of the unique weak solutions of the 2D stochastic Navier-Stokes equations with Navier boundary conditions, as the boundary friction is taken uniformly to infinity, to the unique weak solution under the no-slip…

概率论 · 数学 2025-04-09 Daniel Goodair

We consider a stochastic interacting particle system in a bounded domain with reflecting boundary, including creation of new particles on the boundary prescribed by a given source term. We show that such particle system approximates 2d…

偏微分方程分析 · 数学 2023-02-27 Francesco Grotto , Eliseo Luongo , Mario Maurelli

We consider the flow of a fluid whose response characteristics change due the value of the norm of the symmetric part of the velocity gradient, behaving as an Euler fluid below a critical value and as a Navier-Stokes fluid at and above the…

数值分析 · 数学 2023-09-27 P. A. Gazca-Orozco , J. Málek , K. R. Rajagopal

We consider the free boundary problem for two layers of immiscible, viscous, incompressible fluid in a uniform gravitational field, lying above a general rigid bottom in a three-dimensional horizontally periodic setting. We establish the…

偏微分方程分析 · 数学 2015-10-07 Yanjin Wang , Ian Tice , Chanwoo Kim

We present the results of a Direct Numerical Simulation of a particle-laden spatially developing turbulent boundary layer up to Re{\theta} = 2500. Two main features differentiate the behavior of inertial particles in a zero-…

流体动力学 · 物理学 2017-03-31 Gaetano Sardina , Francesco Picano , Philip Schlatter , Luca Brandt , Carlo Massimo Casciola

This paper studies the boundary value problem on the steady compressible Navier-Stokes-Fourier system in a channel domain $(0,1)\times\mathbb{T}^2$ with a class of generalized slip boundary conditions that were systematically derived from…

偏微分方程分析 · 数学 2024-09-19 Renjun Duan , Junhao Zhang

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, thermal-slip coefficients in slip boundary conditions of the Stokes equation are derived using the generalized slip-flow theory, with special interest in the role of near-wall potential in micro- and nanoscale flows. As the…

流体动力学 · 物理学 2025-10-20 Tetsuro Tsuji , Koichiro Takita , Satoshi Taguchi

From extensive molecular dynamics simulations on immiscible two-phase flows, we find the relative slipping between the fluids and the solid wall everywhere to follow the generalized Navier boundary condition, in which the amount of slipping…

软凝聚态物质 · 物理学 2009-11-07 Tiezheng Qian , Xiao-Ping Wang , Ping Sheng

We provide an unconditional $L^2$ upper bound for the boundary layer separation of Leray-Hopf solutions in a smooth bounded domain. By layer separation, we mean the discrepancy between a (turbulent) low-viscosity Leray-Hopf solution $u^\nu$…

偏微分方程分析 · 数学 2024-04-29 Alexis F. Vasseur , Jincheng Yang

In my PhD thesis I show the existence of global-in-time weak solutions for a Navier-Stokes fluid interacting with a linearly elastic shell of Koiter type. This is achieved by the introduction of a new method for showing the compactness of…

偏微分方程分析 · 数学 2012-04-10 Daniel Lengeler

We study the high Reynolds number limit of a viscous fluid in the presence of a rough boundary. We consider the two-dimensional incompressible Navier-Stokes equations with Navier slip boundary condition, in a domain whose boundaries exhibit…

偏微分方程分析 · 数学 2017-06-23 David Gérard-Varet , Christophe Lacave , Toan T. Nguyen , Frédéric Rousset