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

Abstract

Computations of the reflection of planar shocks from wedge surfaces are performed with 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.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1990
Accession Number
ADA227261

Entities

People

  • Dixie M. Hisley

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Blast Waves
  • Commerce
  • Computational Fluid Dynamics
  • Computations
  • Dynamic Pressure
  • Engineering
  • Equations
  • Fluid Dynamics
  • Fluid Mechanics
  • Geometry
  • Leading Edges
  • Mach Number
  • Military Research
  • Nuclear Explosions
  • Shock Waves
  • Simulations
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering