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:

1964-12-01

Pagination or Media Count:

65.0

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

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE