Three-Dimensional Viscous Shock-Layer Analysis of Laminar or Turbulent Flows in Chemical Equilibrium,

Abstract

A method has been developed to predict three-dimensional hypersonic laminar or turbulent shock-layer flows for perfect gas or equilibrium air. A two-layer eddy-viscosity model is used for the turbulent regime. The thermodynamic and transport properties for air are obtained by interpolation within a two-dimensional stable or from curve-fit data. Comparisons are made for air in chemical equilibrium and perfect gas for a seven-degree half-angle spherically blunted cone at various flight altitudes with a cold, moderately cool and an adiabatic wall for angles of attack up to twenty degrees. Wall heat transfer, wall pressure, force and moment coefficients and execution times are compared for some sample cases. This method can be used to predict viscous flow in chemical equilibrium over axisymmetric reentry vehicles at angles of attack up to 25 degrees. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 14, 1981
Accession Number
ADA111792

Entities

People

  • B. Denysyk

Organizations

  • Virginia Tech

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Blunt Bodies
  • Boundary Layer
  • Boundary Layer Flow
  • Computational Fluid Dynamics
  • Computer Programs
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Heat Transfer
  • Hypersonic Flow
  • Layers
  • Prandtl Number
  • Reynolds Number
  • Thermodynamic Properties
  • Transport Properties
  • Turbulent Flow
  • Viscosity

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers
  • Hypersonics - Hypersonic Flight