Compressible Navier–Stokes equations with heterogeneous pressure laws

Compressible Navier–Stokes equations with heterogeneous pressure laws
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具有异质压力定律的可压缩纳维斯托克斯方程

DOI:
10.1088/1361-6544/ac03a1
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发表时间:
2021
期刊:
影响因子:
1.7
通讯作者:
Wang, Fei
Wang, Fei
中科院分区:
数学2区
文献类型:
--
作者:
Bresch, Didier;Jabin, Pierre-Emmanuel;Wang, Fei

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本文研究了具有密度和时空变量t、x的压力律的可压缩Navier-Stokes方程整体弱解的存在性。关于压力的假设只包含关于密度变量的局部Lipschitz假设和关于额外时空变量的某些假设。这可以看作是考虑热传导Navier-Stokes方程与物理定律,如截断维里假设的第一步。本文着重于利用新的正则化不动点过程构造近似解,并利用两位第一作者引入的新方法,仔细研究了与压力相关的适当正则化量,讨论了弱稳定过程。
This paper concerns the existence of global weak solutions à la Leray for compressible Navier–Stokes equations with a pressure law which depends on the density and on time and space variables t and x. The assumptions on the pressure contain only locally Lipschitz assumption with respect to the density variable and some hypothesis with respect to the extra time and space variables. It may be seen as a first step to consider heat-conducting Navier–Stokes equations with physical laws such as the truncated virial assumption. The paper focuses on the construction of approximate solutions through a new regularized and fixed point procedure and on the weak stability process taking advantage of the new method introduced by the two first authors with a careful study of an appropriate regularized quantity linked to the pressure.
第 4 章 - 守恒定律和输运方程双曲系统的注释
DOI: 10.1016/s1874-5717(07)80007-7
发表时间: 2007
期刊: Proceedings of the Royal Society of Edinburgh: Section A Mathematics
影响因子: --
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