Local Existence and Uniqueness of Strong Solutions to the Free Boundary Problem of the Full Compressible Navier--Stokes Equations in three dimensions

SIAM JOURNAL ON MATHEMATICAL ANALYSIS(2019)

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摘要
In this paper we establish the local-in-time existence and uniqueness of strong solutions to the free boundary problem of the full compressible Navier-Stokes equations in three-dimensional space. The vanishing density and temperature condition is imposed on the free boundary, which captures the motions of the nonisentropic viscous gas surrounded by vacuum with bounded entropy. We also assume some proper decay rates of the density towards the boundary and singularities of derivatives of the temperature across the boundary on the initial data, which coincides with the physical vacuum condition for the isentropic flows. This extends the previous result of Liu [SIAM J. Math. Anal., 50 (2018), pp. 6100-6155] by removing the spherically symmetric assumption and considering more general initial density and temperature profiles.
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关键词
compressible full Navier-Stokes equations,free boundary problem,existence of strong solutions,bounded entropy
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