It is very important to develop the technology of the hypersonic vehicle along with the demand of many countries. This article summarizes the technology of MHD flow control and MHD generator and analyzes key technical issues of application of MHD. It included increase theoretic research and found accurate 3D model of MHD flow. The first, it needs to develop technology of large dimension plasma generator to impose effect of MHD in scramjet, at the same time it also needs to consider weight volume material and thermal protective; The second, it needs to build model of MHD energy bypass and calculate range of application of MHD.
Linearized model collision operators for multiple ion species plasmas and gyrokinetic entropy balance equations