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This paper aims to compare and evaluate various obstacle approximation techniques employed in the context of the steady incompressible Navier-Stokes equations. Specifically, we investigate the effectiveness of a standard volume penalization…

偏微分方程分析 · 数学 2024-01-05 Piotr Krzyżanowski , Sadokat Malikova , Piotr B. Mucha , Tomasz Piasecki

In this work, we are interested in the link between strong solutions of the Boltzmann and the Navier-Stokes equations. To justify this connection, our main idea is to use information on the limit system (for instance the fact that the…

偏微分方程分析 · 数学 2019-03-07 Isabelle Gallagher , Isabelle Tristani

We study the full Navier--Stokes--Fourier system governing the motion of a general viscous, heat-conducting, and compressible fluid subject to stochastic perturbation. Stochastic effects are implemented through (i) random initial data, (ii)…

偏微分方程分析 · 数学 2017-10-31 Dominic Breit , Eduard Feireisl

In this paper we consider the Navier-Stokes equations supplemented with either the Dirichlet or vorticity-based Navier boundary conditions. We prove that weak solutions obtained as limits of solutions to the Navier-Stokes-Voigt model…

偏微分方程分析 · 数学 2016-05-17 Luigi C. Berselli , Stefano Spirito

We establish the existence of infinitely many stationary solutions, as well as ergodic stationary solutions, to the three dimensional Navier--Stokes and Euler equations in both deterministic and stochastic settings, driven by additive…

概率论 · 数学 2024-07-19 Martina Hofmanová , Rongchan Zhu , Xiangchan Zhu

Onsager's conjecture for the 3D Navier-Stokes equations concerns the validity of energy equality of weak solutions with regards to their smoothness. In this note we establish energy equality for weak solutions in a large class of function…

偏微分方程分析 · 数学 2018-03-22 Alexey Cheskidov , Xiaoyutao Luo

In this paper we modified the Navier-Stokes equations by adding a higher order artificial viscosity term to the conventional system. We first show that the solution of the regularized system converges strongly to the solution of the…

偏微分方程分析 · 数学 2010-12-30 Abdelhafid Younsi

We investigate the effect of aliasing when applied to the storage of variables, and their reconstruction for the solution of conservation equations. In particular, we investigate the effect on the error of storing primitives versus…

数值分析 · 数学 2024-12-20 Will Trojak , Ash Scillitoe , Rob Watson

It is known that there has been classified for all $(-1)$-homogeneous axisymmetric no-swirl solutions of the three-dimensional Navier-Stokes equations with a possible singular ray. The main purpose of this paper is to show that the least…

偏微分方程分析 · 数学 2023-04-05 Zhiwen Zhao , Xiaoxin Zheng

This report presents a low computational and cognitive complexity, stable, time accurate and adaptive method for the Navier-Stokes equations. The improved method requires a minimally intrusive modification to an existing program based on…

数值分析 · 数学 2019-02-01 Victor DeCaria , William Layton , Haiyun Zhao

A hyperbolic relaxation of the classical Navier-Stokes problem in 2D bounded domain with Dirichlet boundary conditions is considered. It is proved that this relaxed problem possesses a global strong solution if the relaxation parameter is…

偏微分方程分析 · 数学 2018-08-01 Alexei Ilyin , Yuri Rykov , Sergey Zelik

We are concerned with the long-time behavior of classical solutions to the isentropic compressible Navier-Stokes equations in $\mathbb R^3$. Our main results and innovations can be stated as follows: Under the assumption that the density…

偏微分方程分析 · 数学 2024-11-05 Guochun Wu , Xin Zhong

In this paper, we analyze a scheme for the time-dependent variable density Navier-Stokes equations. The algorithm is implicit in time, and the space approximation is based on a low-order staggered non-conforming finite element, the…

数值分析 · 数学 2017-07-06 Jean-Claude Latché , Khaled Saleh

In this paper, we study the three-dimensional axisymmetric compressible Navier-Stokes equations with slip boundary conditions in a cylindrical domain excluding the axis. We establish the global existence and exponential decay of weak,…

偏微分方程分析 · 数学 2025-11-19 Qinghao Lei

In this paper, we show the existence and uniqueness of a strong solution to stochastic 3D tamed Navier-Stokes equations driven by multiplicative Levy noise with periodic boundary conditions. Then we establish the large deviation principles…

概率论 · 数学 2020-02-24 Zhao Dong , Rangrang Zhang

In this paper, we investigate the low Mach and low Froude numbers limit for the compressible Navier-Stokes equations with degenerate, density-dependent, viscosity coefficient, in the strong stratification regime. We consider the case of a…

偏微分方程分析 · 数学 2021-07-13 Francesco Fanelli , Ewelina Zatorska

This paper establishes the nonlinear time-asymptotic stability of shifted planar viscous shock waves for the three-dimensional relaxed compressible Navier-Stokes equations, in which a modified Maxwell-type model replaces the classical…

偏微分方程分析 · 数学 2025-11-12 Renyong Guan , Yuxi Hu

This paper concerns the existence of global weak solutions \`a la Leray for compressible Navier-Stokes equations with a pressure law that depends on the density and on time and space variables $t$ and $x$. The assumptions on the pressure…

偏微分方程分析 · 数学 2021-08-11 Didier Bresch , Pierre Emmanuel Jabin , Fei Wang

The main goal of this paper is to obtain sufficient conditions that allow us to rigorously derive local versions of the 4/5 and 4/3 laws of hydrodynamic turbulence, by which we mean versions of these laws that hold in bounded domains. This…

偏微分方程分析 · 数学 2021-07-07 Stavros Papathanasiou

In this paper, we analyze a tamed 3D Navier-Stokes equation in uniform $C^2$-domains (not necessarily bounded), which obeys the scaling invariance principle, and prove the existence and uniqueness of strong solutions to this tamed equation.…

偏微分方程分析 · 数学 2008-06-11 Xicheng Zhang