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RESEARCH PAPERS

The Mean Flow Structure Around and Within a Turbulent Junction or Horseshoe Vortex—Part II. The Separated and Junction Vortex Flow

[+] Author and Article Information
F. J. Pierce

Virginia Polytechnic Institute and State University, Blacksburg, VA 24061

M. D. Harsh

Hercules Inc. at Allegany Ballistics Laboratory, Cumberland, MD 21502

J. Fluids Eng 110(4), 415-423 (Dec 01, 1988) (9 pages) doi:10.1115/1.3243572 History: Received October 29, 1986; Online October 26, 2009

Abstract

The mean flow structure upstream, around, and in a turbulent junction or horseshoe vortex are reported for an incompressible, subsonic flow. This fully documented, unified, comprehensive, and self-consistent data base is offered as a benchmark or standard test case for assessing the predictive capabilities of computational codes developed to predict this kind of complex flow. The three-dimensional turbulent boundary layer-like flow upstream and around the separated junction vortex flow is described in a companion paper, Part I. Part II of these papers covers the flow through the separation region and in the vortex system. This portion of the flow has been documented with mean velocity, static pressure, and total pressure measurements using a very carefully calibrated five-hole probe. The streamwise vorticity field is calculated from the measured velocity field. Extensive floor static pressure measurements emphasizing the region of the vortex system, and static pressure measurements on the cylinder surface are also reported. Flow visualizations on the floor and cylinder surface show unusual detail and agree well both qualitatively and quantitatively with the various flow field measurements.

Copyright © 1988 by ASME
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