Existence of finite energy weak solutions for the equations MHD of compressible fluids

Abstract

This article concerns the existence of global weak solutions for a compressible Magnetohydrodynamic model. We assume the viscosity and the resistivity to be constant and we prove that Feireisl and Lions's strategies dedicated to the usual barotropic compressible flows may be extended to our system. The only difficulty to be taken into account is the magnetic field dependency. The case with density-dependent viscosity and resistivity coefficients will be treated in a forthcoming paper following Bresch and Desjardins's strategy.

Keywords:

• Magnetohydrodynamic models
• compressible fluids
• weak solutions

AMS Subject Classification::

• 35Q30