扩展域上退化可压缩Navier-Stokes方程的无粘不可压缩极限
Inviscid Incompressible Limit for Degenerate Compressible Navier-Stokes Equations on Expanding Domains
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中文总结 AI 辅助
研究三维退化可压缩Navier-Stokes方程在扩展域上的无粘和低马赫数极限,从非准备充分数据出发,证明极限系统是不可压缩欧拉系统,扩展了前人结果,首次同时建立依赖密度粘性的无粘和不可压缩极限。
中文摘要 AI 辅助
我们同时研究了三维退化可压缩Navier-Stokes方程在扩展域上的无粘和低马赫数极限,其粘性依赖于密度。从非准备充分的数据出发,我们证明极限系统是不可压缩欧拉系统。我们的结果扩展了Feireisl等人关于常粘性Navier-Stokes方程的先前结果,并且首次同时建立了依赖于密度的粘性的无粘和不可压缩极限。
英文摘要
We simultaneously investigate the inviscid and Low Mach number limits on expanding domains for the $3D$ degenerate compressible Navier-Stokes equations, whose viscosity depends on density. Starting from ill-prepared data, we show the limit system is the incompressible Euler system. Our result extends a previous result of Feireisl et al. concerning the constant viscosity Navier-Stokes equations, and is the first to establish the inviscid and incompressible limits at the same time for density-dependent viscosity.