中文
相关论文

相关论文: A MUSCL-Hancock scheme for non-local conservation …

200 篇论文

This paper presents a new narrow-stencil finite difference method for approximating the viscosity solution of second order fully nonlinear elliptic partial differential equations including Hamilton-Jacobi-Bellman equations. The proposed…

数值分析 · 数学 2019-10-30 Xiaobing Feng , Thomas Lewis

We introduce a new class of nonlocal nonlinear conservation laws in one space dimension that allow for nonlocal interactions over a finite horizon. The proposed model, which we refer to as the nonlocal pair interaction model, inherits at…

偏微分方程分析 · 数学 2016-11-29 Qiang Du , Zhan Huang , Philippe G. LeFloch

In this paper, we introduce a framework for the discretization of a class of constrained Hamilton-Jacobi equations, a system coupling a Hamilton-Jacobi equation with a Lagrange multiplier determined by the constraint. The equation is…

数值分析 · 数学 2024-03-20 Benoît Gaudeul , Hélène Hivert

This paper proposes a second-order accurate numerical scheme for the Patlak-Keller-Segel system with various mobilities for the description of chemotaxis. Formulated in a variational structure, the entropy part is novelly discretized by a…

数值分析 · 数学 2024-06-07 Jie Ding , Cheng Wang , Shenggao Zhou

In this paper we propose the first better than second order accurate method in space and time for the numerical solution of the resistive relativistic magnetohydrodynamics (RRMHD) equations on unstructured meshes in multiple space…

广义相对论与量子宇宙学 · 物理学 2015-05-13 Michael Dumbser , Olindo Zanotti

We prove the convergence of certain second-order numerical methods to weak solutions of the Navier-Stokes equations satisfying in addition the local energy inequality, and therefore suitable in the sense of Scheffer and…

数值分析 · 数学 2022-03-02 Luigi C. Berselli , Stefano Spirito

We study an abstract second order inclusion involving two nonlinear single-valued operators and a nonlinear multivalued term. Our goal is to establish the existence of solutions to the problem by applying numerical scheme based on time…

偏微分方程分析 · 数学 2019-01-24 Krzysztof Bartosz , Leszek Gasiński , Zhenhai Liu , Paweł Szafraniec

We propose a new numerical approach to compute nonclassical solutions to hyperbolic conservation laws. The class of finite difference schemes presented here is fully conservative and keep nonclassical shock waves as sharp interfaces,…

We consider the numerical approximation of Maxwell's equations in time domain by a second order $H(curl)$ conforming finite element approximation. In order to enable the efficient application of explicit time stepping schemes, we utilize a…

数值分析 · 数学 2020-02-14 Herbert Egger , Bogdan Radu

We investigate the numerical approximation of (discontinuous) entropy solutions to nonlinear hyperbolic conservation laws posed on a Lorentzian manifold. Our main result establishes the convergence of monotone and first-order finite volume…

数值分析 · 数学 2007-12-10 Paulo Amorim , Philippe G. LeFloch , Bawer Okutmustur

We propose to extend the well-known MUSCL-Hancock scheme for Euler equations to the induction equation modeling the magnetic field evolution in kinematic dynamo problems. The scheme is based on an integral form of the underlying…

天体物理学 · 物理学 2009-11-11 R. Teyssier , S. Fromang , E. Dormy

First-order energy dissipative schemes in time are available in literature for the Poisson-Nernst-Planck (PNP) equations, but second-order ones are still in lack. This work proposes novel second-order discretization in time and finite…

数值分析 · 数学 2023-09-08 Jie Ding , Shenggao Zhou

We propose and analyze a structure-preserving approximation of the non-isothermal Cahn-Hilliard equation using conforming finite elements for the spatial discretization and a problem-specific mixed explicit-implicit approach for the…

数值分析 · 数学 2026-02-05 Aaron Brunk , Dennis Höhn , Mária Lukáčová-Medvidová

We consider a class of finite element approximations for fourth-order parabolic equations that can be written as a system of second-order equations by introducing an auxiliary variable. In our approach, we first solve a variational problem…

数值分析 · 数学 2021-06-30 Sana Keita , Abdelaziz Beljadid , Yves Bourgault

We deal with the problem of approximating a scalar conservation law by a conservation law with nonlocal flux. As convolution kernel in the nonlocal flux, we consider an exponential-type approximation of the Dirac distribution. This enables…

偏微分方程分析 · 数学 2020-12-25 Giuseppe Maria Coclite , Jean-Michel Coron , Nicola De Nitti , Alexander Keimer , Lukas Pflug

A quasi-second order scheme is developed to obtain approximate solutions of the shallow water equationswith bathymetry. The scheme is based on a staggered finite volume scheme for the space discretization:the scalar unknowns are located in…

数值分析 · 数学 2021-11-19 R Herbin , J. -C Latché , Y Nasseri , N Therme

We present a class of numerical schemes for two-dimensional systems of nonlocal conservation laws, which are based on utilizing well-known monotone numerical flux functions after suitably approximating the nonlocal terms. The considered…

数值分析 · 数学 2026-02-19 Anika Beckers , Jan Friedrich

The analysis of non-local regularisations of scalar conservation laws is an active research program. Applications of such equations are found in the modelling of physical phenomena such as traffic flow. In this paper, we propose a novel…

偏微分方程分析 · 数学 2026-01-14 Shyam Sundar Ghoshal , Parasuram Venkatesh , Emil Wiedemann

Two-fluid relativistic plasma flow equations combine the equations of relativistic hydrodynamics with Maxwell's equations for electromagnetic fields, which involve divergence constraints for the magnetic and electric fields. When developing…

Solutions to hyperbolic conservation laws can be approximated in many different ways: by vanishing viscosity, relaxations, discrete or semi-discrete numerical schemes, approximation with a nonlocal flux, etc$\ldots$ For some of these…

偏微分方程分析 · 数学 2026-05-04 Alberto Bressan , Laura Caravenna , Wen Shen