A Frozen Vorticity Approach to the Axisymmetric Strong Interaction Problem.

Abstract

A highly automated numerical procedure is presented for calculating the flow field in the strong interaction region of a body of revolution. The method is based on the frozen vorticity approximation which allows the strong interaction flow field to be computed in three steps without iteration -- a potential flow calculation, a boundary-layer calculation and a frozen vorticity calculation. The potential and frozen vorticity equations are solved by line relaxation with spline-finite difference discretization. Automation is achieved by a common streamwise grid spacing in all three calculations plus computer generated data files to transfer information to successive stages of the calculation. Numerical solutions are presented for two bodies and the results compared with published experimental data. Originator-supplied keywords include: axisymmetric bodies.

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Document Details

Document Type
Technical Report
Publication Date
Sep 14, 1984
Accession Number
ADA149101

Entities

People

  • G. H. Hoffman

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Differential Equations
  • Equations
  • Flow Fields
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Low Drag
  • Navy
  • Potential Flow
  • Pressure Distribution
  • Reynolds Number
  • Stagnation Point
  • Turbulent Boundary Layer

Fields of Study

  • Engineering
  • Physics

Readers

  • Computer Science.
  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster