Analysis of Rough Wall Turbulent Heating with Application to Blunted Flight Vehicles

Abstract

The effect of surface roughness on turbulent heating rates is studied, using a second-order closure model which specifically describes the effect of roughness elements on the boundary layer. Comparisons with detailed measurement from low speed flat plate tests are presented to verify the model. A significant number of successful comparisons have also been made with wind tunnel heat transfer data, mostly for hemispherical noses. The rough wall computations are analyzed to determine the nature of the roughness influence, and to derive improved heat transfer correlations for engineering applications.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1979
Accession Number
ADA065665

Entities

People

  • M. L. Finson
  • P. K. S. Wu

Organizations

  • Physical Sciences (United States)

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Boundary Layer
  • Computational Fluid Dynamics
  • Engineering
  • Equations
  • Fluid Flow
  • Geometric Forms
  • Heat Transfer
  • Measurement
  • Mechanical Properties
  • Scientific Research
  • Skin Friction
  • Surface Roughness
  • Three Dimensional
  • Turbulent Boundary Layer
  • Two Dimensional
  • Vehicles

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Theoretical Analysis.