Accession Number:

ADA149101

Title:

A Frozen Vorticity Approach to the Axisymmetric Strong Interaction Problem.

Descriptive Note:

Technical memo.,

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK APPLIED RESEARCH LAB

Personal Author(s):

Report Date:

1984-09-14

Pagination or Media Count:

47.0

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.

Subject Categories:

  • Numerical Mathematics
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE