A new Mach 9 contoured nozzle to use with air was designed and realized at Alta SpA with the aim to produce a uniform core flow with a diameter of at least 80 mm. The design was iteratively carried out using engineering codes and CFD simulations by CIRA. The characterization activity was carried out mapping the complete test section in terms of pitot pressure and total enthalpy and measuring the pressure and heat flux distribution on the nozzle internal walls. The flow before the convergent was characterized by means of total pressure measurements and spectroscopy. A numerical rebuilding of the test was performed by CIRA and PoliTO and compared with experimental data. The paper will briefly describe the design phase and will present all the characterization results.

Characterization of a New Mach 9 Nozzle for the HEAT Hypersonic Wind Tunnel

CRISTOFOLINI, ANDREA;NERETTI, GABRIELE;
2009

Abstract

A new Mach 9 contoured nozzle to use with air was designed and realized at Alta SpA with the aim to produce a uniform core flow with a diameter of at least 80 mm. The design was iteratively carried out using engineering codes and CFD simulations by CIRA. The characterization activity was carried out mapping the complete test section in terms of pitot pressure and total enthalpy and measuring the pressure and heat flux distribution on the nozzle internal walls. The flow before the convergent was characterized by means of total pressure measurements and spectroscopy. A numerical rebuilding of the test was performed by CIRA and PoliTO and compared with experimental data. The paper will briefly describe the design phase and will present all the characterization results.
Proc. of 'The 6th European Symposium on Aerothermodynamics for Space Vehicles', 3-6 November 2008, Versailles, France (ESA SP-659, January 2009)
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D. Baccarella; A. Passaro; P. Caredda; A. Cristofolini; G. Neretti; V.M. Granciu; A. Schettino; F. Battista; D. D’Ambrosio
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/97661
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