Progress in Developing a Transition Model for High-Speed Flows

Abstract

This report summarizes research conducted during the past year whose aim is to develop and test an accurate and efficient method for describing boundary-layer development in the transition region. A low-Reynolds-number version of the Wilcox k-w model has been postulated and tested against experimental data for 10 fully turbulent boundary layers and for more than 20 transitional cases. Overall discrepancies between theory and experiment are smaller than those for simpler correlations designed for use with algebraic turbulence models. Singular perturbation analysis of the compressible viscous sublayer and defect layer has been initiated with some interesting preliminary results. Some progress has been made toward eliminating the k-w model's sensitivity to the freestream boundary condition on w.... Transition, Turbulence modeling, Hypersonics, Computational fluid dynamics.

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Document Details

Document Type
Technical Report
Publication Date
Oct 20, 1992
Accession Number
ADA260332

Entities

People

  • David C. Wilcox

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Boundary Layer Flow
  • Boundary Layer Transition
  • Computational Fluid Dynamics
  • Computational Science
  • Fluid Dynamics
  • Fluid Flow
  • Incompressible Flow
  • Layers
  • Mach Number
  • Pressure Gradients
  • Reynolds Number
  • Skin Friction
  • Turbulence
  • Turbulent Boundary Layer
  • Turbulent Flow

Fields of Study

  • Physics

Readers

  • Aerospace Test and Evaluation
  • Computational Fluid Dynamics (CFD)
  • Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers
  • Hypersonics - Hypersonic Flow