LOW MACH NUMBER LIMIT OF STRONG SOLUTIONS FOR 3-D FULL COMPRESSIBLE MHD EQUATIONS WITH DIRICHLET BOUNDARY CONDITION

摘要

In this paper, we consider the low Mach number limit of the full compressible MHD equations in a 3-D bounded domain with Dirichlet boundary condition for velocity field, Neumann boundary condition for temperature and perfectly conducting boundary condition for magnetic field. First, the uniform estimates in the Mach number for the strong solutions are obtained in a short time interval, provided that the initial density and temperature are close to the constant states. Then, we prove the solutions of the full compressible MHD equations converge to the isentropic incompressible MHD equations as the Mach number tends to zero.