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Experimental Verification of Departure from-Rankine- Hugoniot Behaviour in Weak Mach Reflection

Siegenthaler, Alfred & Madhani, Jehangir T. (1998) Experimental Verification of Departure from-Rankine- Hugoniot Behaviour in Weak Mach Reflection. In 13th Australasian Fluid Mechanics Conference, 13-18 December 1998, Monash University, Melbourne, Australia.

Abstract

Stagnation temperature traverses were performed in the supersonic wind tunnel behind the reflected shock wave of WMR. This had been suggested, among other obser-vations, by some earlier puzzling results from shock tube experiments. The present findings substantially confirm the hypothesis that the reflected shock undergoes a transformation which produces a departure from RH behaviour. This anomaly is found to result in a small drop of stagnation enthalpy across the reflected wave. This mechanism raises the r-wave’s ailing streamline deflecting capacity. The effect goes on increasing past RR till the conditions for onset of WMR can be satisfied.

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ID Code: 2748
Item Type: Conference Paper
Keywords: weak mach reflection, experiments, wind tunnels, supersonic, Madhani, Siegenthaler, high speed temperature measurements, transition, regular mach reflection
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Mechanical Engineering not elsewhere classified (091399)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > AEROSPACE ENGINEERING (090100)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > AEROSPACE ENGINEERING (090100) > Aerodynamics (excl. Hypersonic Aerodynamics) (090101)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > AEROSPACE ENGINEERING (090100) > Aerospace Engineering not elsewhere classified (090199)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 1998 (please consult author)
Deposited On: 06 Dec 2005
Last Modified: 11 Aug 2011 03:27

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