Accession Number:

ADA099391

Title:

Prediction of Supersonic Store Separation Characteristics Including Fuselage and Stores of Noncircular Cross Section. Volume II. Users Manual for the Computer Program.

Descriptive Note:

Final rept. Jun 75-Jan 80,

Corporate Author:

NIELSEN ENGINEERING AND RESEARCH INC MOUNTAIN VIEW CA

Report Date:

1980-11-01

Pagination or Media Count:

247.0

Abstract:

Detailed instructions are presented for using a computer program which calculates the six-degree-of-freedom trajectories of external stores which are separated from fighter-bomber type aircraft flying at supersonic speeds. Multiple circular or elliptical store configurations may be handled. Parent aircraft configurations may consist of a circular or arbitrary cross section fuselage with ramp external compression inlets, and a wing, pylon, and rack. The program uses linear potential-flow theory to model the wing and pylon loading and thickness. Three-dimensional line sources and doublets are used to model circular fuselages and stores. The noncircular fuselage and elliptic store surfaces are modeled with constant source panels. Nonlinear corrections are made to the wing, fuselage, rack, store and fuselage inlet models to simulate shocks. The program also calculates the trajectory of the store as it separates from the aircraft. This report describes the program, presents instructions for preparing input for the program, describes the output from the program, and presents a sample case. The program represents an extension of an earlier program restricted to circular bodies at supersonic speeds written by the present authors and described in AFFDL-TR-76-41. This volume presents the instructions for preparing input for each of two programs, a sample case for each, and the descriptions of the output cases. Author

Subject Categories:

  • Bombers
  • Attack and Fighter Aircraft
  • Computer Programming and Software
  • Armor
  • Fire Control and Bombing Systems
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE