Accession Number:

ADA411143

Title:

Experimental Studies of High-Speed Separated Flows

Descriptive Note:

Final rept. 1 Jun 1997-31 Dec 2001

Corporate Author:

ILLINOIS UNIV AT URBANA DEPT OF MECHANICAL AND INDUSTRIAL ENGINEERING

Report Date:

2002-03-01

Pagination or Media Count:

489.0

Abstract:

This final report describes the results of a four-year research effort that performed experimental studies in the general area of high. speed separated flows. The motivation for this research effort was to investigate in detail high-speed base flows that are similar in nature to those occurring for missiles and projectiles, so that they can be better understood, predicted, and controlled. The research program consisted of two inter-related tasks 1 planar visualization and measurement of axisymmetric, supersonic base flows and 2 three-dimensional, supersonic base flows. The research approach consisted of detailed separated flow experiments employing both conventional instrumentation, such as schlieren and shadowgraph photography, surface streakline visualization, and mean and fluctuating pressure measurements, with major emphasis on non-intrusive optical diagnostic techniques, including laser Doppler velocimetry, particle image velocimetry, planar RayleighMie scattering visualization, planar laserinduced fluorescence, and pressure. sensitive paint. We believe that this research effort has contributed significant fundamental understanding of the fluid dynamic mechanisms in separated flows, in addition to the direct relevance of this program to applications of importance to the U.S. Army.

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE