AbstractThe 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].
Nonequilibrium recombination after a curved shock wave
Progress in Aerospace Sciences ; 46 , 2-3 ; 132-139
2009-01-01
8 pages
Article (Journal)
Electronic Resource
English
Nonequilibrium recombination after a curved shock wave
Online Contents | 2010
|Shock wave dispersion in nonequilibrium plasmas
AIAA | 1996
|Nonequilibrium effects in oblique shock-wave reflection
AIAA | 1988
|