Abstract
The combined effects of an electromagnetic perturbation and viscous-inviscid interaction generate a high-pressure plateau near the hypersonic leading edge surface. The surface pressure induced by magnetofluid-dynamic interaction emulates a movable leading edge strake. This phenomenon has been verified in experimental research, which shows that a direct current surface discharge becomes a virtual compression ramp for flow control. More recently, investigation has extended to a rectangular hypersonic inlet. The present analysis solves the magnetofluid-dynamic equations using weakly ionized gas models, including the formulation based on the drift-diffusion theory. The numerical simulation provides a detailed description of the intriguing magnetofluid-dynamic interacting flowfield. After validation by experimental measurements, the computed results quantify the effectiveness of a magnetofluid-dynamic compression for a hypersonic inlet. Applying a plasma generation power input to a direct current surface discharge of 7.87 W per square centimeter of electrode area, the interaction produces an 11.7% higher compression of a constant cross-section inlet.
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