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 the experiment is to produce a data base to be used for the validation of numerical codes which are utilized to analyze the magneto-fluid dynamics in hypersonic flows. In the present experiment the MHD interaction is obtained in the shock layer of a conical test body placed 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 by 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 runs are performed at three different stagnation pressures. Fluid-dynamic, electrical and optical observations have been done. The experiment showed a large effect of the MHD interaction on the values of the measured quantities.
MHD Interaction over an Axial Symmetric Body in a Hypersonic Flow / A. Cristofolini; CA. Borghi; M. Carraro; G. Neretti; A. Passaro; G. Fantoni; L. Biagioni; F. Paganucci. - STAMPA. - AIAA 2006-8008:(2006), pp. 1-10. (Intervento presentato al convegno 14th AIAA/AHI Space Planes and Hypersonic Systems and Technologies Conference tenutosi a Canberra, Australia nel Navember 5-9,2006).
MHD Interaction over an Axial Symmetric Body in a Hypersonic Flow
CRISTOFOLINI, ANDREA;BORGHI, CARLO ANGELO;CARRARO, MARIO ROBERTO;NERETTI, GABRIELE;
2006
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 the experiment is to produce a data base to be used for the validation of numerical codes which are utilized to analyze the magneto-fluid dynamics in hypersonic flows. In the present experiment the MHD interaction is obtained in the shock layer of a conical test body placed 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 by 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 runs are performed at three different stagnation pressures. Fluid-dynamic, electrical and optical observations have been done. The experiment showed a large effect of the MHD interaction on the values of the measured quantities.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
