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arXiv 2107.04744math.AP
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导热系数随温度变化的可压缩Navier-Stokes方程组外压问题解的非线性稳定性

Nonlinearly stability of solutions on the outer Pressure Problem of Compressible Navier-Stokes System with Temperature-Dependent Heat Conductivity

Guocai Cai, Canpei Chen, Yanfang Peng

摘要:

本文研究了具有外压边界条件的一维可压缩Navier-Stokes方程组。在适当的假设下,证明了该方程的比容和温度与时间无关地上下有界,并给出了局部和整体强解的存在性.此外,我们还得到了全局强解到一个定态的收敛性及其收敛性的非线性稳定性。值得注意的是,对初始数据施加的所有假设与Takeyuki Nagasawa [Japan.J.Appl.Math.(1988)]。因此,我们的工作可以被视为对Takeyuki结果的改进。

英文摘要:

In this paper, the one-dimensional compressible Navier-Stokes system with outer pressure boundary conditions is investigated. Under some suitable assumptions, we prove that the specific volume and the temperature are bounded from below and above independently of time, and then give the local and global existence of strong solutions. Furthermore, we also obtain the convergence of the global strong solution to a stationary state and the nonlinearly stability of its convergence. It is worth noticing that all the assumptions imposed on the initial data are the same as Takeyuki Nagasawa [Japan.J.Appl.Math.(1988)]. Therefore, our work can be regarded as an improvement of the results of Takeyuki.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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