BLAST2D Computations of the Reflection of Planar Shocks from Wedge Surfaces withComparison to SHARC and STEALTH Results

摘要

Computations of the reflection of planar shocks from wedge surfaces are performedwith BLAST2D in order to compare to computational results from the SHARC, and the STEALTH codes and for comparison to experimental data obtained from the Ernst Mach Institute. Results are presented for an incident shock with Mach number equal to 2.12 impinging on 30, 45, 60 degree wedges. Also, BLAST2D results are presented for an incident shock with Mach number equal to 1.295 impinging on 25 and 60 degree double wedge for comparison to SHARC results and to an experimental shadowgraph published by Takayama and Ben-Dor. A new type of contour plot the computational shadowgraph is shown to produce excellent agreement with the experimental shadowgraph for the double wedge case. Keywords: Mach reflection, Inverse mach reflection, Computer simulation, Planar shocks, Wedges. (JHD)