A new construction of weak solutions to compressible Navier–Stokes equations

A new construction of weak solutions to compressible Navier–Stokes equations
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可压缩纳维-斯托克斯方程弱解的新构造

DOI:
10.1007/s00208-023-02730-7
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发表时间:
2022
影响因子:
1.4
通讯作者:
E. Zatorska
E. Zatorska
中科院分区:
数学2区
文献类型:
--
作者:
N. Chaudhuri;P. Mucha;E. Zatorska

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相似文献

证明了三维空间正压N-S方程的弱解的存在性。本文的创新之处在于其近似格式不是连续性方程的经典正则化(基于粘性近似),而是更直接地截断和正则化了非线性项和压力。该方案与密度的Bresch-Jabin紧凑性准则是兼容的。我们重新审视了这一标准,并充分证明了它可以在任何水平上应用于我们的近似。
We prove the existence of the weak solutions to the compressible Navier--Stokes system with barotropic pressure $p(\varrho)=\varrho^\gamma$ for $\gamma\geq 9/5$ in three space dimension. The novelty of the paper is the approximation scheme that instead of the classical regularization of the continuity equation (based on the viscosity approximation $\ep \Delta \varrho$) uses more direct truncation and regularisation of nonlinear terms an the pressure. This scheme is compatible with the Bresch-Jabin compactness criterion for the density. We revisit this criterion and prove, in full rigour, that it can be applied in our approximation at any level.
DOI: 10.4007/annals.2018.188.2.4
发表时间: 2015-07
影响因子: 4.9
作者:
D. Bresch;P. Jabin
通讯作者: D. Bresch;P. Jabin
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
发表时间: 2021
期刊: Nonlinearity
影响因子: 1.7
作者:
Bresch, Didier;Jabin, Pierre-Emmanuel;Wang, Fei
通讯作者: Wang, Fei