Accession Number : ADP004793

Title :   Mach 3 Three-Dimensional Boundary Layer Turbulence Transport Properties on a Spherically Blunt Cone,

Corporate Author : NAVAL SURFACE WEAPONS CENTER SILVER SPRING MD

Personal Author(s) : Ausherman,D. W. ; Yanta,W. J.

Report Date : AUG 1984

Pagination or Media Count : 24

Abstract : Three-dimensional boundary layer measurements were carried out on a 7-degree semi-vertex angle conical body configuration for angles-of-attack of 0 deg, 2 deg, and 4 deg in the NSWC Supersonic Tunnel Number Two. Tests were conducted at a freestream Mach number of 3 for a nominal freestream Reynolds number of 2.3 x 1000000/ft (7.5 x 1000000/m) on a cone with a nominal 22% spherically blunt nose. Measurements of the three mean velocity components, turbulence, intensities, and Reynolds stresses were obtained at various circumferential locations around the body for one axial station using a 3-D Laser Doppler Velocimeter system. In addition, surface Preston probe and static pressure measurements were obtained at five axial stations along the body. The effects of angle-of-attack and model roll position on the three-dimensional mean velocities, boundary layer turbulence properties, and surface parameters are discussed herein. (Author)

Descriptors :   *GAS FLOW, *BOUNDARY LAYER, *WIND TUNNEL TESTS, *NOSE CONES, *BLUNT BODIES, AERODYNAMIC CONFIGURATIONS, THREE DIMENSIONAL, SUPERSONIC WIND TUNNELS, FREE STREAM, DATA BASES

Distribution Statement : APPROVED FOR PUBLIC RELEASE