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Nonequilibrium recombination after a curved shock wave

Wen, Chihyung and Hornung, Hans (2010) Nonequilibrium recombination after a curved shock wave. Progress in Aerospace Sciences, 46 (2-3). pp. 132-139. ISSN 0376-0421.

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The effect of nonequilibrium recombination after a curved two-dimensional shock wave in a hypervelocity dissociating flow of an inviscid Lighthill–Freeman gas is considered. An analytical solution is obtained with the effective shock values derived by Hornung (1976) [5] and the assumption that the flow is ‘quasi-frozen’ after a thin dissociating layer near the shock. The solution gives the expression of dissociation fraction as a function of temperature on a streamline. A rule of thumb can then be provided to check the validity of binary scaling for experimental conditions and a tool to determine the limiting streamline that delineates the validity zone of binary scaling. The effects on the nonequilibrium chemical reaction of the large difference in free stream temperature between free-piston shock tunnel and equivalent flight conditions are discussed. Numerical examples are presented and the results are compared with solutions obtained with two-dimensional Euler equations using the code of Candler (1988) [10].

Item Type:Article
Related URLs:
URLURL TypeDescription DOIArticle
Hornung, Hans0000-0002-4903-8419
Additional Information:© 2009 Elsevier. Available online 5 December 2009. This work was supported by AFOSR Grant F49610-92-J-0110 (Dr. L. Sakell) and AFOSR Grant F49620-93-1-0338 (Dr. J. Tishkoff).
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
Issue or Number:2-3
Record Number:CaltechAUTHORS:20100412-083809478
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:17926
Deposited By: Tony Diaz
Deposited On:26 Apr 2010 16:39
Last Modified:22 Nov 2019 09:58

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