MHD Interaction around a Blunt Body in a Hypersonic Unseeded Air Flow: Experimental Results and Numerical Rebuilding

摘要

This summary paper is related to the experimental investigation on the magneto fluid dynamic interaction around a blunt test body immersed into a hypersonic unseeded air flow. The experiments have been carried out in the CIRA owned plasma wind tunnel SCIROCCO. Two test conditions have been utilized for the experiments, with a total pressure of 2.5 and 2.3 bar respectively and a total specific enthalpy of 16 and 12.1 MJ/kg, and the air flow accelerated in the nozzle up to Mach 10. The magnetic induction field is generated by an electromagnet enclosed in the test article, and can reach a 0.8 T maximum value in the interaction region. The numerical rebuilding of the experimental data was carried out on a restricted set of experimental conditions. Two different CIRA codes have been used, CAST and EMC3NS. The two codes, whose structure is generally similar, are different is some modeling aspects. Their results compared with experimental data have been analyzed and critically compared. The work has been conjunctly funded by the European Space Agency and The Italian Space Agency.