A Method for Calculating the Flowfield in the Tail Region of a Body of Revolution.

Abstract

A method is presented for calculating a high Reynolds number flow field in the aft region of a body of revolution without appendages where the boundary layer and outer inviscid flow strongly interact. The method is based on a correction of the displacement body idea to effectively represent streamline curvature effects by means of a simple pressure mapping. The problem is solved numerically on a digital computer by iterating for the unknown displacement body surface. Typically, from 6 to 8 iterations are required for convergence. Available computation codes are used for the boundary layer flow and outer inviscid flow while a simple integral model is used for the wake. Comparisons of computed results are made with experiment and other numerical solutions for three bodies. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 19, 1978
Accession Number
ADA061208

Entities

People

  • G. H. Hoffman

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Bodies
  • Boundary Layer
  • Boundary Layer Flow
  • Computational Fluid Dynamics
  • Computational Science
  • Drag
  • Equations
  • Flow Fields
  • Fluid Flow
  • Geometry
  • Inviscid Flow
  • Jet Propulsion
  • Navy
  • Pressure Distribution
  • Pressure Gradients
  • Reynolds Number
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Fluid Mechanics and Fluid Dynamics.