数学物理学报(英文版) ›› 2010, Vol. 30 ›› Issue (6): 1906-1916.doi: 10.1016/S0252-9602(10)60182-8

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STABILITY OF VISCOUS CONTACT WAVE FOR COMPRESSIBLE NAVIER-STOKES SYSTEM OF GENERAL GAS WITH FREE BOUNDARY

黄飞敏|王勇|翟晓云   

  1. Institute of Applied Mathematics, |Academy of Mathematics and Systems Science Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2010-06-10 出版日期:2010-11-20 发布日期:2010-11-20
  • 基金资助:

    The research of FMH was supported in part by NSFC (10825102) for distinguished youth scholar, NSFC-NSAF (10676037) and 973 project of China (2006CB805902).

STABILITY OF VISCOUS CONTACT WAVE FOR COMPRESSIBLE NAVIER-STOKES SYSTEM OF GENERAL GAS WITH FREE BOUNDARY

 HUANG Fei-Min, WANG Yong, ZHAI Xiao-Yun   

  1. Institute of Applied Mathematics, |Academy of Mathematics and Systems Science Chinese Academy of Sciences, Beijing 100190, China
  • Received:2010-06-10 Online:2010-11-20 Published:2010-11-20
  • Supported by:

    The research of FMH was supported in part by NSFC (10825102) for distinguished youth scholar, NSFC-NSAF (10676037) and 973 project of China (2006CB805902).

摘要:

In this paper, we study the large time behavior  of solutions to the nonisentropic Navier-Stokes equations of general gas, where polytropic gas is included as a special case, with a free boundary. First we construct a viscous contact wave which approximates to the contact discontinuity, which is a basic wave pattern of compressible Euler equation, in finite time as the heat conductivity tends to zero. Then we prove the viscous contact wave is asymptotic stable if the initial perturbations and the strength of the contact wave are small. This generalizes our previous result
[6] which is only for polytropic gas.

关键词: Navier-Stokes equations, contact discontinuity, viscous contact wave

Abstract:

In this paper, we study the large time behavior  of solutions to the nonisentropic Navier-Stokes equations of general gas, where polytropic gas is included as a special case, with a free boundary. First we construct a viscous contact wave which approximates to the contact discontinuity, which is a basic wave pattern of compressible Euler equation, in finite time as the heat conductivity tends to zero. Then we prove the viscous contact wave is asymptotic stable if the initial perturbations and the strength of the contact wave are small. This generalizes our previous result
[6] which is only for polytropic gas.

Key words: Navier-Stokes equations, contact discontinuity, viscous contact wave

中图分类号: 

  • 35L50