Accession Number : ADA111777

Title :   An Influence Function Method for Predicting Store Aerodynamic Characteristics during Weapon Separation,

Corporate Author : GRUMMAN AEROSPACE CORP BETHPAGE NY

Personal Author(s) : Meyer,R ; Cenko,A ; Yaros,S

PDF Url : ADA111777

Report Date : 14 May 1981

Pagination or Media Count : 16

Abstract : A method has been developed for predicting the forces and moments on a store during weapon separation based on previous wind tunnel data for another store in the same flow field. This new technique uses conventional grid survey store force and moment data and parameter identification analysis to 'identify' the local angle-of-attack distribution in proximity to the parent aircraft. Predicted force and moment characteristics for other stores based on this derived angle-of-attack show excellent correlation with supersonic data. The evidence to date indicates that the method will be applicable to virtually all stores at subsonic-supersonic Mach numbers. (Author)

Descriptors :   *External stores, Separation, Aerodynamic characteristics, Flow fields, Mathematical prediction, Aerodynamic forces, Moments, Grids, Parametric analysis, Coefficients, Angle of attack, Experimental data

Subject Categories : Aircraft
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE