数学物理学报(英文版) ›› 2016, Vol. 36 ›› Issue (4): 1192-1214.doi: 10.1016/S0252-9602(16)30062-5

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GLOBAL STABILITY OF WAVE PATTERNS FOR COMPRESSIBLE NAVIER-STOKES SYSTEM WITH FREE BOUNDARY

秦晓红1, 王腾2, 王益3   

  1. 1 Department of Mathematics, Nanjing University of Science and Technology, Nanjing 210094, China;
    2 Department of Mathematics, School of Science, Beijing Forestry University, Beijing 100083, China;
    3 Institute of Applied Mathematics, AMSS, CAS, Beijing 100190, China
  • 收稿日期:2015-11-04 修回日期:2016-01-29 出版日期:2016-08-25 发布日期:2016-08-25
  • 通讯作者: Yi WANG,E-mail:wangyi@amss.ac.cn E-mail:wangyi@amss.ac.cn
  • 作者简介:Xiaohong QIN,E-mail:xqin@amss.ac.cn;Teng WANG,E-mail:tengwang@amss.ac.cn
  • 基金资助:

    The research of X H Qin was supported by NSFC Grant No. 11171153, the research of T Wang was supported by the Fundamental Research Funds for the Central Universities No. 2015ZCQ-LY-01 and No. BLX2015-27, and the research of Y Wang was supported by NSFC Grant No. 11322106.

GLOBAL STABILITY OF WAVE PATTERNS FOR COMPRESSIBLE NAVIER-STOKES SYSTEM WITH FREE BOUNDARY

Xiaohong QIN1, Teng WANG2, Yi WANG3   

  1. 1 Department of Mathematics, Nanjing University of Science and Technology, Nanjing 210094, China;
    2 Department of Mathematics, School of Science, Beijing Forestry University, Beijing 100083, China;
    3 Institute of Applied Mathematics, AMSS, CAS, Beijing 100190, China
  • Received:2015-11-04 Revised:2016-01-29 Online:2016-08-25 Published:2016-08-25
  • Contact: Yi WANG,E-mail:wangyi@amss.ac.cn E-mail:wangyi@amss.ac.cn
  • Supported by:

    The research of X H Qin was supported by NSFC Grant No. 11171153, the research of T Wang was supported by the Fundamental Research Funds for the Central Universities No. 2015ZCQ-LY-01 and No. BLX2015-27, and the research of Y Wang was supported by NSFC Grant No. 11322106.

摘要:

In this article, we investigate the global stability of the wave patterns with the superposition of viscous contact wave and rarefaction wave for the one-dimensional compressible Navier-Stokes equations with a free boundary. It is shown that for the ideal polytropic gas, the superposition of the viscous contact wave with rarefaction wave is nonlinearly stable for the free boundary problem under the large initial perturbations for any γ>1 with γ being the adiabatic exponent provided that the wave strength is suitably small.

关键词: Compressible Navier-Stokes system, free boundary, combination of viscous contact and rarefaction wave, nonlinear stability

Abstract:

In this article, we investigate the global stability of the wave patterns with the superposition of viscous contact wave and rarefaction wave for the one-dimensional compressible Navier-Stokes equations with a free boundary. It is shown that for the ideal polytropic gas, the superposition of the viscous contact wave with rarefaction wave is nonlinearly stable for the free boundary problem under the large initial perturbations for any γ>1 with γ being the adiabatic exponent provided that the wave strength is suitably small.

Key words: Compressible Navier-Stokes system, free boundary, combination of viscous contact and rarefaction wave, nonlinear stability

中图分类号: 

  • 76N10