Shock Impingement caused by Boundary Layer Separation Ahead of Blunt Fins

Abstract

High speed flow past a blunt fin on a surface results in a fin bow shock which causes the boundary layer to separate from the surface ahead of the fin, resulting in horseshoe vortices near the surface and a lambda-type shock pattern ahead of the fin. The shock wave emanating from the separated flow region impinges on the fin bow shock and causes intense heating and high pressures locally on the fin leading edge. A research program was conducted to examine and to obtain a better understanding of these interaction flow fields; Mach three flows were surveyed ahead of blunt fins on a flat plate surface with turbulent boundary layers.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1972
Accession Number
AD0752210

Entities

People

  • Leo C. Morton
  • Louis G. Kaufman Ii.
  • Robert H. Korkegi

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Boundary Layer Flow
  • Computational Fluid Dynamics
  • Flow Fields
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Mechanics
  • Heat Transfer
  • Mechanics
  • Pressure Distribution
  • Pressure Gradients
  • Pressure Measurement
  • Reynolds Number
  • Three Dimensional
  • Turbulent Mixing
  • Two Dimensional
  • United States

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Fluid Mechanics and Fluid Dynamics.