Analytical Approximation of Two-Dimensional Separated Turbulent Boundary-Layer Velocity Profiles

Abstract

A single analytical expression is proposed to describe the velocity distribution in a two-dimensional, separated, turbulent boundary layer on smooth, impermeable, adiabatic walls over the domain 0 less than or = to y less than infinity. The expression is an extension of one previously derived for attached flow which depends upon local values of skin friction, shape factor, and Reynolds number based on momentum thickness. Boundary-layer shape factor and local skin friction correlations applicable to separated flows are derived from fitting the proposed analytical expression for separated velocity profiles to available experimental data. These correlations are then available for analytically describing separated velocity profiles without further fitting.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1980
Accession Number
ADA091204

Entities

People

  • T. W. Swafford

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Boundary Layer
  • Compressible Flow
  • Data Analysis
  • Engineering
  • Equations
  • Experimental Data
  • Flow
  • Friction
  • Government Procurement
  • Governments
  • Incompressible Flow
  • Kinetic Energy
  • Reynolds Number
  • Skin Friction
  • Turbulent Boundary Layer
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Fluid Mechanics and Fluid Dynamics.