Accession Number : AD0690900

Title :   EXPERIMENTAL MEASUREMENTS IN THE WAKE OF 10 DEGREE HALF ANGLE BLUNTED AND POINTED CONES AT HYPERSONIC FLOW VELOCITIES.

Descriptive Note : Research rept.,

Corporate Author : POLYTECHNIC INST OF BROOKLYN FARMINGDALE N Y DEPT OF AEROSPACE ENGINEERING AND APPLIED MECHANICS

Personal Author(s) : Lederman,Samuel ; Avidor,Joel

Report Date : MAY 1969

Pagination or Media Count : 51

Abstract : Experimental measurements were performed in the wake of a 10 deg half angle cone at 0 to 10 deg angle of attack with respect to the flow, and of a blunted cone of .333, and .666 bluntness ratio at 0 deg angle of attack. A rake of closely spaced (1 in. apart) electrostatic probes was utilized to obtain the relative electron density distribution at several stations behind the base of the cone. These electron densities can, under certain conditions and in most parts of the wake, be interpreted in terms of the neutral density distributions. It is concluded that the hypersonic shock tunnel in conjunction with simple electrostatic probes can, within limits, provide a good qualitative insight into the flow field of complex aerodynamic models. (Author)

Descriptors :   (*ELECTRON DENSITY, WAKE), (*CONICAL BODIES, HYPERSONIC CHARACTERISTICS), ATMOSPHERE ENTRY, ANGLE OF ATTACK, BLUNT BODIES, MODEL TESTS

Subject Categories : Aerodynamics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE