中文
相关论文

相关论文: On semi-implicit schemes for the incompressible Eu…

200 篇论文

An asymptotic preserving and energy stable scheme for the barotropic Euler system under the low Mach number scaling is designed and analysed. A velocity shift proportional to the pressure gradient is introduced in the convective fluxes,…

数值分析 · 数学 2023-07-21 K. R. Arun , Rahuldev Ghorai , Mainak Kar

A new type of low-regularity integrator is proposed for Navier-Stokes equations, coupled with a stabilized finite element method in space. Unlike the other low-regularity integrators for nonlinear dispersive equations, which are all fully…

数值分析 · 数学 2021-07-29 Buyang Li , Shu Ma , Katharina Schratz

An asymptotic preserving and energy stable scheme for the Euler-Poisson system under the quasineutral scaling is designed and analysed. Correction terms are introduced in the convective fluxes and the electrostatic potential, which lead to…

数值分析 · 数学 2023-07-24 K. R. Arun , Rahuldev Ghorai , Mainak Kar

Smooth solutions of the forced incompressible Euler equations satisfy an energy balance, where the rate-of-change in time of the kinetic energy equals the work done by the force per unit time. Interesting phenomena such as turbulence are…

偏微分方程分析 · 数学 2024-04-22 Fabian Jin , Samuel Lanthaler , Milton C. Lopes Filho , Helena J. Nussenzveig Lopes

We are interested in the stability analysis of two-dimensional incompressible inviscid fluids. Specifically, we revisit a recent result on the stability of Yudovich's solutions to the incompressible Euler equations in $L^\infty([0,T];H^1)$…

偏微分方程分析 · 数学 2023-12-25 Diogo Arsénio , Haroune Houamed

An all speed scheme for the Isentropic Euler equation is presented in this paper. When the Mach number tends to zero, the compressible Euler equation converges to its incompressible counterpart, in which the density becomes a constant.…

数学物理 · 物理学 2014-04-08 Pierre Degond , Min Tang

A semi-implicit in time, entropy stable finite volume scheme for the compressible barotropic Euler system is designed and analyzed and its weak convergence to a dissipative measure-valued (DMV) solution [E. Feireisl et al., Dissipative…

数值分析 · 数学 2023-12-07 K. R. Arun , Amogh Krishnamurthy

A rigorous derivation of the incompressible Euler equations with the no-penetration boundary condition from the Boltzmann equation with the diffuse reflection boundary condition has been a challenging open problem. We settle this open…

偏微分方程分析 · 数学 2020-05-26 Juhi Jang , Chanwoo Kim

Stability is an important aspect of numerical methods for hyperbolic conservation laws and has received much interest. However, continuity in time is often assumed and only semidiscrete stability is studied. Thus, it is interesting to…

数值分析 · 数学 2020-08-28 Philipp Öffner , Jan Glaubitz , Hendrik Ranocha

We are concerned with globally defined entropy solutions to the Euler equations for compressible fluid flows in transonic nozzles with general cross-sectional areas. Such nozzles include the de Laval nozzles and other more general nozzles…

偏微分方程分析 · 数学 2018-05-09 Gui-Qiang G. Chen , Matthew R. I. Schrecker

We propose a spectral viscosity method to approximate the two-dimensional Euler equations with rough initial data and prove that the method converges to a weak solution for a large class of initial data, including when the initial vorticity…

数值分析 · 数学 2021-04-01 Samuel Lanthaler , Siddhartha Mishra

We propose and study the framework of dissipative statistical solutions for the incompressible Euler equations. Statistical solutions are time-parameterized probability measures on the space of square-integrable functions, whose…

数值分析 · 数学 2021-02-25 Samuel Lanthaler , Siddhartha Mishra , Carlos Parés-Pulido

The present work concerns the derivation of a numerical scheme to approximate weak solutions of the Euler equations with a gravitational source term. The designed scheme is proved to be fully well-balanced since it is able to exactly…

数值分析 · 数学 2025-10-23 Christophe Berthon , Victor Michel-Dansac , Andrea Thomann

We are concerned with spherically symmetric solutions of the Euler equations for multidimensional compressible fluids, which are motivated by many important physical situations. Various evidences indicate that spherically symmetric…

偏微分方程分析 · 数学 2015-06-11 Gui-Qiang G. Chen , Mikhail Perepelitsa

We design an energy-stable and asymptotic-preserving finite volume scheme for the compressible Euler system. Using the relative energy framework, we establish rigorous error estimates that yield convergence of the numerical solutions in two…

We develop a mesh-based semi-Lagrangian discretization of the time-dependent incompressible Navier-Stokes equations with free boundary conditions recast as a non-linear transport problem for a momentum 1-form. A linearly implicit fully…

数值分析 · 数学 2024-02-05 Wouter Tonnon , Ralf Hiptmair

In this paper, we propose a linear and monolithic finite element method for the approximation of an incompressible viscous fluid interacting with an elastic and deforming plate. We use the arbitrary Lagrangian-Eulerian (ALE) approach that…

数值分析 · 数学 2023-01-13 Sebastian Schwarzacher , Bangwei She , Karel Tuma

Chemin has shown that solutions of the Navier-Stokes equations in the plane for an incompressible fluid whose initial vorticity is bounded and lies in L^2 converge in the zero-viscosity limit in the L^2-norm to a solution of the Euler…

数学物理 · 物理学 2007-05-23 James P. Kelliher

We establish the vanishing viscosity limit of the Navier-Stokes equations to the Euler equations for three-dimensional compressible isentropic flow in the whole space. It is shown that there exists a unique regular solution of compressible…

偏微分方程分析 · 数学 2019-06-26 Yongcai Geng , Yachun Li , Shengguo Zhu

We present an efficient numerical scheme based on Monte Carlo integration to approximate statistical solutions of the incompressible Euler equations. The scheme is based on finite volume methods, which provide a more flexible framework than…

数值分析 · 数学 2022-09-07 Carlos Parés-Pulido
‹ 上一页 1 2 3 10 下一页 ›