Transonic Shock - Turbulent Boundary Layer Interaction and Incipient Separation on Curved Surfaces.

Abstract

A detailed analysis is made of weak normal shock-turbulent boundary layer interactions on longitudinally-curved surfaces for the case of non-separating steady 2-D flow. It is shown that the interactive viscous displacement effect on the local outer inviscid transonic flow eliminates the well-known singularity pertaining to a curved wall. The inner interaction solution within the boundary layer reveals that curvature moderately influences the interaction through the turbulent eddy viscosity. A non-asymptotic triple-deck solution valid over a wide range of practical Reynolds numbers is given which incorporates this effect, and example numerical results are presented and verified by comparison with experimental data. Small amounts of curvature are found to moderately spread out and thicken the interaction zone while also delaying slightly the onset of any incipient separation that occurs under the shock. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1981
Accession Number
ADA103307

Entities

People

  • George R. Inger

Organizations

  • University of Colorado Boulder

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Engineering
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Inviscid Flow
  • Layers
  • Mach Number
  • Pressure Distribution
  • Pressure Gradients
  • Reynolds Number
  • Shock Waves
  • Transonic Flow
  • Turbulent Boundary Layer
  • Turbulent Flow
  • Viscosity

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.