The MHD interaction around a conical test body in a hypersonic argon flow is experimentally investigated. The hypersonic flow is realized in the high-enthalpy arc-heated wind tunnel of Alta (Pisa-Italy) at Mach 6. The aim of experimental activity is to produce an experimental data base to be used for the validation of numerical codes for the analysis of the MHD interaction. The MHD interaction is obtained in the shock layer of the conical test body at the exit of the hypersonic nozzle. The electrical configuration realized allows to enhance the effect of the MHD interaction on the plasma parameters. This is done utilizing the Hall field to generate the MHD interaction and by short-circuiting the Faraday current inside the plasma of the shock layer. The magnetic flux density is produced by an array of three magnets located in the test body. Test are performed at three different stagnation pressures. Fluid-dynamic, electrical and optical observations have been done. The experiment showed a quit large effect of the MHD interaction on the values of the quantities measured.
MHD Interaction over an Axial Symmetric Body in Hypersonic Flow
PAGANUCCI, FABRIZIO
2006-01-01
Abstract
The MHD interaction around a conical test body in a hypersonic argon flow is experimentally investigated. The hypersonic flow is realized in the high-enthalpy arc-heated wind tunnel of Alta (Pisa-Italy) at Mach 6. The aim of experimental activity is to produce an experimental data base to be used for the validation of numerical codes for the analysis of the MHD interaction. The MHD interaction is obtained in the shock layer of the conical test body at the exit of the hypersonic nozzle. The electrical configuration realized allows to enhance the effect of the MHD interaction on the plasma parameters. This is done utilizing the Hall field to generate the MHD interaction and by short-circuiting the Faraday current inside the plasma of the shock layer. The magnetic flux density is produced by an array of three magnets located in the test body. Test are performed at three different stagnation pressures. Fluid-dynamic, electrical and optical observations have been done. The experiment showed a quit large effect of the MHD interaction on the values of the quantities measured.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
