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This work proposes an efficient, linear, and fully decoupled pressure-correction scheme for the 2D stochastic Navier-Stokes equations with multiplicative noise and Dirichlet boundary condition. Leveraging the auxiliary variable approach,…

数值分析 · 数学 2025-11-20 Can Huang , Weiwen Wang , Chuanju Xu

The steady motion of a viscous incompressible fluid in a junction of unbounded channels with sources and sinks is modeled through the Navier-Stokes equations under inhomogeneous Dirichlet boundary conditions. In contrast to many previous…

偏微分方程分析 · 数学 2025-05-21 Filippo Gazzola , Mikhail V. Korobkov , Xiao Ren , Gianmarco Sperone

We prove the existence and uniqueness of solutions to the time-dependent incompressible Navier-Stokes equations with a free-boundary governed by surface tension. The solution is found using a topological fixed-point theorem for a nonlinear…

偏微分方程分析 · 数学 2007-05-23 Daniel Coutand , Steve Shkoller

This paper studies pressure-robustness for the axisymmetric Stokes problem. The transformation to cylindrical coordinates requires that the radially weighted velocity is divergence-free in the classical sense. Consequently, traditional…

数值分析 · 数学 2026-03-16 Philip L. Lederer , Christoph Lehrenfeld , Christian Merdon , Tim van Beeck

We study the Stokes problem in a bounded planar domain $\Omega$ with a friction type boundary condition that switches between a slip and no-slip stage. Unlike our previous work [6], in the present paper the threshold value may depend on the…

偏微分方程分析 · 数学 2016-01-22 Jaroslav Haslinger , Jan Stebel

In this work we treat the space-time discretization of the generalized Stokes equations in the case of Dirichlet boundary conditions. We prove error estimates in the case $p\in[\frac{2d}{d+2},\infty)$ that are independent of the degeneracy…

数值分析 · 数学 2016-10-21 S. Eckstein , M. Ruzicka

Based on energy considerations, we derive a class of dynamic outflow boundary conditions for the incompressible Navier-Stokes equations, containing the well-known convective boundary condition but incorporating also the stress at the…

偏微分方程分析 · 数学 2017-08-29 Dieter Bothe , Takahito Kashiwabara , Matthias Köhne

In this paper, we consider the Stokes equations in a perforated domain. When the number of holes increases while their radius tends to 0, it is proven in [L. Desvillettes, F. Golse and V. Ricci. The mean field limit for solid particles in a…

偏微分方程分析 · 数学 2016-11-21 Amina Mecherbet , Matthieu Hillairet

Penalty methods relax the incompressibility condition and uncouple velocity and pressure. Experience with them indicates that the velocity error is sensitive to the choice of penalty parameter $\epsilon$. So far, there is no effective \'a…

数值分析 · 数学 2024-04-19 Rui Fang

Incompressible Navier-Stokes equations on a thin spherical domain $Q_\varepsilon$ along with free boundary conditions under a random forcing are considered. The convergence of the martingale solution of these equations to the martingale…

概率论 · 数学 2020-07-15 Zdzisław Brzeźniak , Gaurav Dhariwal , Quoc Thong Le Gia

We study the initial-boundary value problem of the Navier-Stokes equations for incompressible fluids in a domain in $\R^3$ with compact and smooth boundary, subject to the kinematic and Navier boundary conditions. We first reformulate the…

偏微分方程分析 · 数学 2009-01-05 Gui-Qiang Chen , Zhongmin Qian

We consider ionic electrodiffusion in fluids, described by the Nernst-Planck-Navier-Stokes system. We prove that the system has global smooth solutions for arbitrary smooth data: arbitrary positive Dirichlet boundary conditions for the…

偏微分方程分析 · 数学 2021-05-05 Peter Constantin , Mihaela Ignatova , Fizay-Noah Lee

The paper deals with the Dirichlet problem for the nonstationary Stokes system in a cone. The authors obtain existence and uniqueness results for solutions in weighted Sobolev spaces and study the asymptotics of the solutions at infinity.

偏微分方程分析 · 数学 2018-03-06 Vladimir Kozlov , Juergen Rossmann

We present an $\textit{a priori}$ error analysis for the kinematic pressure in a fully-discrete finite-differences/-elements discretization of the unsteady $p$-Stokes equations, modelling non-Newtonian fluids. This system is subject to both…

数值分析 · 数学 2025-11-04 Alex Kaltenbach , Jörn Wichmann

In this paper, we consider the Stokes problem with Dirichlet boundary conditions and the constant kinematic viscosity $\nu$ in an axis-aligned domain $\Omega$. We decouple the velocity $\bm u$ and pressure $p$ by deriving a novel biharmonic…

数值分析 · 数学 2025-06-17 Qiwei Feng , Bin Han , Michael Neilan

In this paper, we prove in two dimensions global identifiability of the viscosity in an incompressible fluid by making boundary measurements. The main contribution of this work is to use more natural boundary measurements, the Cauchy…

偏微分方程分析 · 数学 2015-06-18 Ru-Yu Lai , Gunther Uhlmann , Jenn-Nan Wang

We study the stationary nonhomogeneous Navier--Stokes problem in a two dimensional symmetric domain with a semi-infinite outlet (for instance, either parabo-\\loidal or channel-like). Under the symmetry assumptions on the domain, boundary…

偏微分方程分析 · 数学 2015-05-28 M. Chipot , K. Kaulakyt , K. Pileckas , W. Xue

We study the boundary value problem for the stationary Navier--Stokes system in two dimensional exterior domain. We prove that any solution of this problem with finite Dirichlet integral is uniformly bounded. Also we prove the existence…

偏微分方程分析 · 数学 2017-11-08 Mikhail V. Korobkov , Konstantinas Pileckas , Remigio Russo

We study some particular solutions to the Navier-Stokes-Poisson equations with density-dependent viscosity and with pressure, in radial symmetry. With extension of the previous known blowup solutions for the Euler-Poisson equations /…

数学物理 · 物理学 2011-07-29 Yeung Ling Hei , Yuen Manwai

A mixed boundary value problem for the Stokes system in a polyhedral domain is considered. Here different boundary conditions (in particular, Dirichlet, Neumann, free surface conditions) are prescribed on the sides of the polyhedron. The…

数学物理 · 物理学 2007-05-23 Vladimir G. Maz'ya , Juergen Rossmann