Accession Number : AD0457511


Title :   DRAG CHARACTERISTICS OF SEVERAL TWO-BODY SYSTEMS AT TRANSONIC AND SUPERSONIC SPEEDS


Descriptive Note : Final rept., Jan 1962-Dec 1963


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


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


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/457511.pdf


Report Date : Dec 1964


Pagination or Media Count : 116


Abstract : The drag coefficients as well as the stagnation and base pressures of systems using an ogive cylinder or skirted hemisphere as primary body and a flat plate, 45 degree half-angle cone, sphere, and hollow hemisphere as secondary body have been measured at transonic and supersonic speeds. The Mach number range was from 0.85 to 1.25 and 4.35. Secondary body size and body separation distance were selected parameters. This is the fourth report in a series of studies dealing with the free stream drag and wake phenomena of bodies of revolution. With a few exceptions in the transonic range, the system drag was less than the sum of the free stream drag of the fore and aft bodies.


Descriptors :   *DRAG , *BODIES OF REVOLUTION , MEASUREMENT , FLOW VISUALIZATION , CYLINDRICAL BODIES , PRESSURE , CONICAL BODIES , TRANSONIC FLOW , FLAT PLATE MODELS , RAREFIED GAS DYNAMICS , FLARED AFTERBODIES , SPARK SHADOWGRAPH PHOTOGRAPHY , SCHLIEREN PHOTOGRAPHY , WIND TUNNEL MODELS , AERODYNAMIC CHARACTERISTICS , WAKE , SUPERSONIC FLOW , OGIVES


Subject Categories : Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE