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arXiv 2203.02749math.AP
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两相流问题弱解的整体存在性和大时间性态

Global existence and large time behavior of weak solutions to the two-phase flow

Ya-Ting Wang, Ling-Yun Shou

摘要:

本文考虑了一个由可压缩Navier-Stokes-Vlasov-Fokker-Planck系统的Chapman-Enskog展开式导出的具有退化粘性的可压缩Navier-Stokes系统与具有常粘性的可压缩Navier-Stokes系统通过拖曳力耦合的两相流模型。对于一般的初值问题,在三维周期区域上建立了具有有限能量的整体弱解的存在性,并证明了当时间趋于无穷大时,整体弱解收敛到其平衡态.

英文摘要:

In this paper, we consider a two-phase flow model consisting of the compressible Navier-Stokes systems with degenerate viscosity coupled with the compressible Navier-Stokes systems with constant viscosities via a drag force, which can be derived from Chapman-Enskog expansion for the compressible Navier-Stokes-Vlasov-Fokker-Planck system. For general initial data, we establish the global existence of weak solutions with finite energy to the initial value problem in the three-dimensional periodic domain, and prove the convergence of global weak solutions to its equilibrium state as the time tends to infinity.

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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