Transition Simulation for Incompressible Boundary Layers and Heated Hydrodynamic Bodies.

Abstract

Incompressible boundary-layer transition has been analyzed using a second-order closure turbulence model. With no transition-specific modifications, the turbulence model predicts salient features of incompressible, zero-pressure-gradient boundary-layer transition including sensitivity to freestream turbulence and surface roughness, transition width, and transitional velocity profiles. With transition modifications based on linear stability theory, the model accurately predicts transition sensitivity to surface heat transfer, pressure gradient, and suction. With no further modifications, transition predictions have been made for several hydrodynamic bodies, including effects of surface heating. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1976
Accession Number
ADA134941

Entities

People

  • D. C. Wilcox
  • T. L. Chambers

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boundary Layer
  • Boundary Layer Transition
  • Coefficients
  • Computational Fluid Dynamics
  • Drag
  • Equations Of Motion
  • Flow
  • Fluid Flow
  • Friction
  • Heat Transfer
  • Low Drag
  • Pressure Distribution
  • Simulations
  • Skin Friction
  • Surface Roughness
  • Turbulent Flow
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.