Accession Number : AD0700035

Title :   SLENDER BODIES OF MINIMUM DRAG IN HYPERSONIC VISCOUS FLOW.

Descriptive Note : Rept. for May-Oct 69,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s) : Mirels,Harold ; Ellinwood,John W.

Report Date : 01 NOV 1969

Pagination or Media Count : 30

Abstract : Hypersonic viscous flow about slender cones, wedges, and 3/4 power law bodies is considered. Body thickness ratios leading to minimum drag are determined subject to constraints of fixed base, fixed volume, or fixed surface area. It is assumed that the shocks are strong and that the fluid is ideal. It is found that minimum drag occurs in a flow region where viscous interaction and, for axisymmetric bodies, transverse curvature must be taken into account. Numerical results are given for optimum thickness ratio and minimum drag as a function of altitude. (Author)

Descriptors :   (*SLENDER BODIES, *DRAG), HYPERSONIC CHARACTERISTICS, VISCOSITY, SHOCK WAVES, BOUNDARY LAYER, THICKNESS

Subject Categories : Aerodynamics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE