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http://dx.doi.org/10.6112/kscfe.2012.17.4.069

CALCULATION OF SHOCK STAND-OFF DISTANCE FOR A SPHERE IN NONEQUILIBRIUM HYPERSONIC FLOW  

Furudate, M. Ahn (Dept. of Mechatronics Engineering, Chungnam Nat'l Univ.)
Publication Information
Journal of computational fluids engineering / v.17, no.4, 2012 , pp. 69-74 More about this Journal
Abstract
Hypersonic flowfields over a sphere is calculated by using a nonequilibrium flow solver. The flow solver features a two-temperature model and finite rate chemical reaction models to describe nonequilibrium thermochemical processes. For the purpose of validation, the calculated shock stand-off distance is compared with the experimental data which is measured in a ballistic range facility. The present nonequilibrium calculation well reproduced the experimental shock stand-off distance in the cases where the experimental flowfields are expected to be nearly equilibrium, as well as in the cases to be nonequilibrium flowfields in the velocity range 4000 to 5500 m/s.
Keywords
Hypersonic flow; Nonequilibrium flow; Shock stand-off distance; Two-temperature model;
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