Unsteady Boundary Layers on Thin Bodies of Revolution.

Abstract

The evolution of unsteady boundary layers on the line of symmetry of a thin prolate spheroid in uniform motion at constant angle of attack after an impulsive start is studied for a prescribed pressure distribution and results have been obtained for angles of attack ranging from 30 degrees to 50 degrees. The unsteady boundary layer is initially unseparated but develops a region of reversed flow after a finite time. A short time later, the streamwise displacement thickness develops a pronounced peak and leads to a singularity of the same type as that observed by van Dommelen and Shen on a circular cylinder started impulsively from rest.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1983
Accession Number
ADA136257

Entities

People

  • K. Stewartson
  • S. M. Schimke
  • T. Cebeci

Organizations

  • McDonnell Douglas

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerodynamics
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computations
  • Equations
  • Fluid Dynamics
  • Fluid Mechanics
  • Geometry
  • Hydrodynamics
  • Inviscid Flow
  • Numbers
  • Pressure Gradients
  • Skin Friction
  • Steady Flow
  • Steady State
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.