Accession Number:

AD0757932

Title:

Aerodynamic Forces and Trajectories of Separated Stores Disturbed Flow Fields

Descriptive Note:

Final rept. 16 Aug 1971-30 Jun 1972

Corporate Author:

ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN

Personal Author(s):

Report Date:

1973-03-01

Pagination or Media Count:

104.0

Abstract:

A vortex-lattice potential flow computer program capable of accepting nonuniform flow boundary conditions but previously restricted to incompressible flows with symmetry was modified to eliminate these restrictions. The program was structured in such a way that, after preliminary calculations of a purely geometric nature were performed one time for a given body, potential flow solutions for any set of boundary conditions on that body could be obtained in computer times measured in seconds rather than minutes. The aerodynamic characteristics of an M-117 bomb, represented by a network of 312 vortices, were calculated for uniform flow at a Mach number of 0.5 and were found to agree with wind tunnel measurements to within 10 percent, except for drag.

Subject Categories:

  • Attack and Fighter Aircraft
  • Aerial Bombs
  • Armor

Distribution Statement:

APPROVED FOR PUBLIC RELEASE