Accession Number : ADP007803

Title :   Unsteady Transonic Aerodynamics of Pointed Bodies of Revolution in Supersonic Freestream,

Corporate Author : UNIVERSIDAD POLITECNICA DE MADRID (SPAIN) ESCUELA TECHNICA SUPERIOR DE INGENI EROS AERONAUTICOS

Personal Author(s) : Fogeda, P. Garcia ; Sanz, A.

Report Date : MAR 1992

Pagination or Media Count : 9

Abstract : A method to determine the aerodynamic forces acting on oscillating pointed bodies of revolution in transonic-supersonic flight has been developed. The nonlinear equation for the mean-flow perturbation potential and the time linearized equation for the cross-flow perturbation potential are both of hyperbolic type, for the Mach number range of interest, and have been solved by the method of characteristics. The method is valid for arbitrary frequencies of oscillation and can be applied for rigid or flexible body motions. Results are presented for the stability force coefficients, unsteady pressure distributions and shock deformations for various body shapes and Mach numbers.

Descriptors :   *AERODYNAMIC FORCES, *BODIES OF REVOLUTION, *SHOCK, AERODYNAMICS, COEFFICIENTS, CROSS FLOW, DEFORMATION, EQUATIONS, MACH NUMBER, MEAN, METHOD OF CHARACTERISTICS, OSCILLATION, PERTURBATIONS, STABILITY, TIME, PRESSURE DISTRIBUTION, TRANSONIC FLIGHT, SUPERSONIC FLIGHT.

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE