The effects of self-generated and applied magnetic fields on the computation of flow over a Mars return aerobrakeA CFD technique is developed to calculate the electromagnetic phenomena simultaneously with the fluid flow in the shock layer over an axisymmetric blunt body in a thermal-equilibrium chemical-nonequilibrium environment. The flowfield is solved using an explicit time-marching, first-order spatially accurate scheme. The electromagnetic phenomena are coupled to the real-gas flow solver through an iterative procedure. The electromagnetic terms introduce a strong stiffness, which was overcome by using significantly smaller time steps for the electromagnetic conservation equation. The technique is applied in calculating the flow over a Mars return aerobrake vehicle entering the Earth's atmosphere. For the case where no external field is applied, the electromagnetic effects have little impact on the flowfield.
Document ID
19910058908
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Palmer, Grant (NASA Ames Research Center Moffett Field, CA, United States)