Abstract
This article uses a magnetohydrodynamics calculation method suitable for high-Mach number and low-Reynolds number flow conditions. The classical Hartmann flow is used to verify the validity and accuracy of the calculation method. By arranging the distribution form and changing the intensity of the magnetic field to study the influence of the magnetic field on the magnetic fluid flow, including the control effect on the shock wave and influence on wall pressure and heat flow density, the aerodynamic heating characteristics under magnetic fluid conditions are obtained. The following conclusions are obtained: the influence of the magnetic field on the flow is mainly reflected by the interaction parameters; given the incoming flow conditions, the effect of the magnetic field can be enhanced by increasing the electrical conductivity or magnetic induction intensity. The effect of the magnetic field on the flow field is mainly manifested as a magnetic retardation effect; after the introduction of the magnetic field, the flow field changes more smoothly, and as the intensity of the magnetic field in the aircraft increases, the shock wave’s detachment position continues to move forward and its intensity gradually weakens. The surface pressure on the aircraft continues to increase, and the heat flow gradually decreases.
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