Wake vortex measurements of bodies at high angle of attackThree-dimensional laser velocimeter measurements have been made of the wake vortices of a slender tangent-ogive body which had nose and body fineness ratios of 3.5 and 12, respectively. Data were obtained for an angle of attack to seminose angle ratio of 2.3 at a free-stream Mach number of 0.6 and unit Reynolds number of 2 million/ft. Details of the mean flow field are presented and features of the turbulent and unsteady nature of the vortex flow field are discussed. Problems associated with obtaining meaningful vortex measurements in high-speed flows are addressed.
Document ID
19780038646
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Owen, F. K. (Owen International Inc. Palo Alto, Calif., United States)
Johnson, D. A. (NASA Ames Research Center Moffett Field, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 78-23
Meeting Information
Meeting: Aerospace Sciences Meeting
Location: Huntsville, AL
Start Date: January 16, 1978
End Date: January 18, 1978
Sponsors: American Institute of Aeronautics and Astronautics