Accession Number : AD0457056

Title :   DRAG CHARACTERISTICS OF PLATES, CONES, SPHERES AND HEMISPHERES IN THE WAKE OF A FOREBODY AT TRANSONIC AND SUPERSONIC SPEEDS.

Descriptive Note : Final rept., Apr 62-Nov 63,

Corporate Author : MINNESOTA UNIV MINNEAPOLIS DEPT OF AERONAUTICS AND ENGINEERING MECHANICS

Personal Author(s) : Heinrich, Helmut G. ; Hess, Sheldon R.

Report Date : DEC 1964

Pagination or Media Count : 65

Abstract : The drag coefficients of a circular flat plate, 45 degree half-angle cone, sphere and hollow hemisphere in the wake of a forebody at transonic and supersonic speeds have been calculated from the drag of a two body system. In addition, a number of direct measurements were made as a supplement to the calculated values. The investigation was carried out at Mach numbers between 0.85 and 1.25 and at M 4.35. Body size and position in the wake were the selected parameters. The drag in the wake was less than in the free stream in all but a few cases in the transonic range, where it was about equal to the free stream drag. (Author)

Descriptors :   *TRANSONIC CHARACTERISTICS, *SUPERSONIC CHARACTERISTICS, DRAG, WAKE, CONICAL BODIES, FLAT PLATE MODELS, SPHERES, HEMISPHERICAL SHELLS, WIND TUNNEL MODELS, INSTRUMENTATION, OGIVES, SPARK SHADOWGRAPH PHOTOGRAPHY, SCHLIEREN PHOTOGRAPHY.

Distribution Statement : APPROVED FOR PUBLIC RELEASE