Accession Number : AD0763437

Title :   Studies in Transonic Flow I. Transonic Area Rule: Bodies,

Corporate Author : CALIFORNIA UNIV LOS ANGELES SCHOOL OF ENGINEERING AND APPLIED SCIENCE

Personal Author(s) : Cole,Julian D.

Report Date : AUG 1972

Pagination or Media Count : 21

Abstract : The area rule is derived on the basis of the asymptotic transonic small-disturbance expansion for slender bodies. Matching of expansions valid in the near-field and the far-field is essential to the result. Some higher order terms in the near-field are calculated in order to apply the momentum theorum consistently. The results agree with those previously obtained that the overall drag is the same as that of a body of revolutions having the same distribution of cross-section area whenever either the body is effectively pointed at the tail; the streamwise rate of change of cross-section is zero at the tail. (Author)

Descriptors :   (*SLENDER BODIES, *TRANSONIC CHARACTERISTICS), (*DRAG, AFTERBODIES), ASYMPTOTIC SERIES, PERTURBATION THEORY, AERODYNAMIC CONFIGURATIONS, STATISTICAL DISTRIBUTIONS, MATHEMATICAL MODELS, EQUATIONS OF MOTION, INTEGRAL EQUATIONS, FLOW FIELDS, FUSELAGES

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE