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We expose a hidden scaling symmetry of the Navier-Stokes equations in the limit of vanishing viscosity, which stems from dynamical space-time rescaling around suitably defined Lagrangian scaling centers. At a dynamical level, the hidden…

流体动力学 · 物理学 2022-02-16 Alexei A. Mailybaev , Simon Thalabard

In this paper, we investigate the analytical solutions of the compressible Navier-Stokes equations with dependent-density viscosity. By using the characteristic method, we successfully obtain a class of drifting solutions with elliptic…

数学物理 · 物理学 2014-05-12 Hongli An , Manwai Yuen

This paper is concerned with the global solvability for the Navier-Stokes equations describing viscous free surface flows of infinite depth in three and higher dimensions. We first prove time weighted estimates of solutions to a linearized…

偏微分方程分析 · 数学 2023-11-21 Hirokazu Saito , Yoshihiro Shibata

The incompressible Navier-Stokes equations coupled to the Maxwell-Stefan relations for the molar fluxes are analyzed in bounded domains with no-flux boundary conditions. The system models the dynamics of a multicomponent gaseous mixture…

偏微分方程分析 · 数学 2013-10-15 Xiuqing Chen , Ansgar Jüngel

This paper describes an adaptive preconditioner for numerical continuation of incompressible Navier--Stokes flows. The preconditioner maps the identity (no preconditioner) to the Stokes preconditioner (preconditioning by Laplacian) through…

数值分析 · 数学 2017-08-02 C. Beaume

In this paper, we present a new computational framework to approximate a Cahn-Hilliard-Navier-Stokes model with variable density and degenerate mobility that preserves the mass of the mixture, the pointwise bounds of the density and the…

In this paper, we rigorously derive the compressible one-fluid Navier-Stokes equation from the scaled compressible two-fluid Navier-Stokes-Maxwell equations locally in time under the assumption that the initial data are well prepared. We…

偏微分方程分析 · 数学 2022-03-21 Yi Peng , Huaqiao Wang

While various phase-field models have recently appeared for two-phase fluids with different densities, only some are known to be thermodynamically consistent, and practical stable schemes for their numerical simulation are lacking. In this…

We present a numerical scheme for approximating the incompressible Navier-Stokes equations based on an auxiliary variable associated with the total system energy. By introducing a dynamic equation for the auxiliary variable and…

流体动力学 · 物理学 2019-05-01 Lianlei Lin , Suchuan Dong

In this paper we study a vanishing pressure process for highly compressible Navier-Stokes equations as the Mach number tends to infinity. We first prove the global existence of weak solutions for the pressureless system in the framework…

偏微分方程分析 · 数学 2017-11-22 Zhilei Liang

We propose a concept of dissipative weak (DW) solutions for the Navier-Stokes-Korteweg (NSK) system and prove conditional convergence of a structure-preserving finite volume scheme towards such a solution. DW solutions provide a generalized…

数值分析 · 数学 2026-04-20 Jan Giesselmann , Philipp Öffner , Robert Sauerborn

In this paper we consider a conservative discretization of the two-dimensional incompressible Navier--Stokes equations. We propose an extension of Arakawa's classical finite difference scheme for fluid flow in the vorticity-stream function…

计算物理 · 物理学 2017-01-06 Lukas Einkemmer , Matthias Wiesenberger

These notes are dedicated to the analysis of the one-dimensional free-congested Navier-Stokes equations. After a brief synthesis of the results obtained in [4] related to the existence and the asymptotic stability of partially congested…

偏微分方程分析 · 数学 2021-05-05 Anne-Laure Dalibard , Charlotte Perrin

In this paper we show the strong convergence of a fully explicit space-time discrete approximation scheme for the solution process of the two-dimensional incompressible stochastic Navier-Stokes equations on the torus driven by additive…

概率论 · 数学 2018-09-07 Sara Mazzonetto

We propose a novel method for the direct numerical simulation of interfacial flows involving large density contrasts, using a Volume-of-Fluid method. We employ the conservative formulation of the incompressible Navier-Stokes equations for…

计算物理 · 物理学 2021-01-13 Sagar Pal , Daniel Fuster , Stéphane Zaleski

We investigate the sharp interface limit of a diffuse interface system that couples the Allen--Cahn equation with the instationary Navier--Stokes system in a bounded domain in $\mathbb{R}^d$ with $d \in \{2,3\}$. This model is used to…

偏微分方程分析 · 数学 2022-05-17 Sebastian Hensel , Yuning Liu

In this paper, we consider numerical approximations for solving the nonlinear magneto-hydrodynamical system, that couples the Navier-Stokes equations and Maxwell equations together. A challenging issue to solve this model numerically is…

数值分析 · 数学 2017-11-28 Guodong Zhang , Xiaoming He , Xiaofeng Yang

Combining the characteristic method and the local discontinuous Galerkin method with carefully constructing numerical fluxes, we design the variational formulations for the time-dependent convection-dominated Navier-Stokes equations in…

计算物理 · 物理学 2017-04-03 Shuqin Wang , Weihua Deng , Yujiang Wu , Jinyun Yuan

We present a fully discrete approximation technique for the compressible Navier-Stokes equations that is second-order accurate in time and space, semi-implicit, and guaranteed to be invariant domain preserving. The restriction on the time…

数值分析 · 数学 2021-02-03 Jean-Luc Guermond , Matthias Maier , Bojan Popov , Ignacio Tomas

We present a novel high order semi-implicit hybrid finite volume/virtual element numerical scheme for the solution of compressible flows on Voronoi tessellations. The method relies on the flux splitting of the compressible Navier-Stokes…

数值分析 · 数学 2024-05-24 Walter Boscheri , Saray Busto , Michael Dumbser