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http://dx.doi.org/10.5139/JKSAS.2002.30.1.009

Papers : The Speed of Sound for Reacting Gases and Effects of the Speed of Sound to Accuracy  

Kim,Gyu-Hong
Lee,Gyeong-Tae
Kim,Jong-Am
No,O-Hyeon
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.30, no.1, 2002 , pp. 9-19 More about this Journal
Abstract
Accuracy of AUSM-type schemes is closely related to a speed of in a cell-interface. Effect to accuracy by a speed of sound invastigated in the region of subsonic, transonic, and supersonic flows repectively. The advantage of the speed of sound in AUSMPW+ are summerized as the improvement of accuracy in capturing an oblique shock and the removal of an expansion shock to satisfy the entropy condition. They are proven by mathmatics and numerical result. Moreover AUSMPW+ is extended to a real gas flow and the speed of sound for equilibrium and nonequilibrium gas which could give exact soultions in an oblique shock is proposed.
Keywords
AUSMPW+; sound of speed; equilibrium gas; nonequilibrium gas;
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