Implicit-explicit schemes for compressible Cahn-Hilliard-Navier-Stokes equations

Fuente: arXiv
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Auteur principal: Mulet, Pep
Format: Preprint
Publié: 2024
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author Mulet, Pep
author_facet Mulet, Pep
contents The isentropic compressible Cahn-Hilliard-Navier-Stokes equations is a system of fourth-order partial differential equations that model the evolution of some binary fluids under convection. The purpose of this paper is the design of efficient numerical schemes to approximate the solution of initial-boundary value problems with these equations. The efficiency stems from the implicit treatment of the high-order terms in the equations. Our proposal is a second-order linearly implicit-explicit time stepping scheme applied in a method of lines approach, in which the convective terms are treated explicitly and only linear systems have to be solved. Some experiments are performed to assess the validity and efficiency of this proposal.
format Preprint
id arxiv_https___arxiv_org_abs_2404_00326
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Implicit-explicit schemes for compressible Cahn-Hilliard-Navier-Stokes equations
Mulet, Pep
Numerical Analysis
The isentropic compressible Cahn-Hilliard-Navier-Stokes equations is a system of fourth-order partial differential equations that model the evolution of some binary fluids under convection. The purpose of this paper is the design of efficient numerical schemes to approximate the solution of initial-boundary value problems with these equations. The efficiency stems from the implicit treatment of the high-order terms in the equations. Our proposal is a second-order linearly implicit-explicit time stepping scheme applied in a method of lines approach, in which the convective terms are treated explicitly and only linear systems have to be solved. Some experiments are performed to assess the validity and efficiency of this proposal.
title Implicit-explicit schemes for compressible Cahn-Hilliard-Navier-Stokes equations
topic Numerical Analysis
url https://arxiv.org/abs/2404.00326