Acta mathematica scientia,Series A ›› 2026, Vol. 46 ›› Issue (4): 1374-1392.

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Free Boundary Problem for the Spherically Symmetric Non-Isentropic Compressible Navier-Stokes Equations

Wenchao Dong1,2(), Zhenhua Guo1,2,*(), Zhenjia Li1,2()   

  1. 1 School of Mathematics, Guangxi University, Nanning 530004
    2 Center for Applied Mathematics of Guangxi (Guangxi University), Nanning 530004
  • Received:2025-12-19 Revised:2026-04-30 Online:2026-08-26 Published:2026-06-10
  • Contact: Zhenhua Guo E-mail:wcdong@gxu.edu.cn;zhguo@gxu.edu.cn;1467663039@qq.com
  • Supported by:
    NSFC(12501298);NSFC(11931013);GXNSF(2026GXNSFBA00640111);GXNSF(2022GXNSFDA035078)

Abstract:

Research on the global well-posedness for the non-isentropic compressible Navier-Stokes equations with large initial data, where the transport coefficients depend on temperature, has primarily focused on the one-dimensional case, while results in higher dimensions remain relatively scarce. This paper studies a free boundary problem for the three-dimensional spherically symmetric non-isentropic compressible Navier-Stokes equations, assuming constant viscosity and heat conductivity depending on both temperature and density. Under the condition that the initial data belong to the $H^1$ space, we establish the existence and uniqueness of global strong solution.

Key words: spherically symmetric Navier-Stokes equations, free boundary problem, well-posedness

CLC Number: 

  • O175.2
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