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Hypersonic Real-Gas Effects on Transition

Hornung, Hans G. (2006) Hypersonic Real-Gas Effects on Transition. In: IUTAM Symposium on One Hundred Years of Boundary Layer Research. Solid Mechanics and its Applications. No.129. Springer , Dordrecht, pp. 335-344. ISBN 978-1-4020-4149-5.

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Some of the results of an extensive research program into the effects on transition of the vibrational and chemical relaxation processes that occur in high-enthalpy flows are presented. Relaxation effects are found to influence transition significantly, with increases of the transition Reynolds number by up to a factor of five. The mechanism responsible for this transition delay is shown to be the damping of the acoustic second mode instability by relaxation processes. Transition is also found to be further delayed by up to a factor of two by suitable wall porosity.

Item Type:Book Section
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Hornung, Hans G.0000-0002-4903-8419
Additional Information:© 2006 Springer. The work described in this paper was supported by AFOSR Grants F49610-92-J-0110, F49620-93-1-0338, and F49620-98-1-0353.
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)F49610-92-J-0110
Air Force Office of Scientific Research (AFOSR)F49620-93-1-0338
Air Force Office of Scientific Research (AFOSR)F49620-98-1-0353
Subject Keywords:Vibrational Excitation; Hypersonic Flow; AIAA Journal; Boundary Layer Transition; Stanton Number
Series Name:Solid Mechanics and its Applications
Issue or Number:129
Record Number:CaltechAUTHORS:20200609-100252589
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:103793
Deposited By: Tony Diaz
Deposited On:09 Jun 2020 18:18
Last Modified:16 Nov 2021 18:25

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