Real Gas Scale Effects on Hypersonic Laminar Boundary-Layer Parameters Including Effects of Entropy-Layer Swallowing

Abstract

Inviscid and viscous (laminar boundary layer) flow-field calculations under perfect gas hypersonic wind tunnel and equilibrium real gas flight conditions are presented for the windward centerline of the Rockwell International 139 Space Shuttle Orbiter at 30 deg angle of attack. Correlation parameters for laminar boundary-layer edge quantities and surface heat transfer are developed which properly account for entropy-layer-swallowing effects under both real and perfect gas conditions. A cursory examination of chemical nonequilibrium effects on the inviscid flow field based on oblique shock relaxation is presented. Some implications of the proposed correlation parameters on boundary-layer transition are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1975
Accession Number
ADA018755

Entities

People

  • A. W. Mayne Jr.
  • E. O. Marchand
  • J. C. Adams Jr.
  • W. R. Martindale

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Boundary Layer
  • Boundary Layer Transition
  • Chemical Reactions
  • Engineering
  • Flow Fields
  • Fluid Dynamics
  • Free Stream
  • Gas Flow
  • Geometry
  • Heat Transfer
  • Hypersonic Flow
  • Hypersonic Wind Tunnels
  • Inviscid Flow
  • Layers
  • Pressure Distribution
  • Wind Tunnels

Fields of Study

  • Physics

Readers

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

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers
  • Hypersonics - Hypersonic Flight
  • Hypersonics - Hypersonic Flow
  • Space
  • Space - Hall-Effect Thruster