An Electrodynamic Aerobraking Experiment in a Rarefied Arc-Heated Flow
Our previous numerical study (Katsurayama et al. AIAA Paper 2008-4016) has predicted that an insulating boundary in a flow is necessary to activate electrodynamic braking in a rarefied flow: the insulating boundary can prevent the Hall effect from dissipating the current which is necessary for the electrodynamic braking. In order to validate this numerical prediction, the present study measures the total drag on a test model in a rarefied arc flow whose insulating boundary (that is an arc plume boundary) location is variable and compares the measured electrodynamic increases of the total drag with the computed values. As a result, the measured and computed total drags increase by applying the magnetic field, but contrary to the computational prediction, the measured electrodynamic increase of the total drag is insensitive to the insulating boundary location.