VISUALIZATION OF REFLECTED SHOCK WAVES FROM AN AXISYMMETRICAL PARABOLIC WALL

Abstract

Computational and experimental studies of shock wave reflection from an ax-isymmetrical parabolic wall were conducted. From the results of the numerical calculations, the effects of incident shock strength upon the reflection process were discussed. The reflected shock waves were visualized by optical shadowgraph tech-nique using a conventional shock tube with air as driver and argon as driven gases and measured shock Mach number was 1.5. Thus optically visualized shock waves were compared with the computer shadowgraphs of computed focusing shock shape and fairly good agreement was obtained.