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RESEARCH PAPERS

Coherent Structures in the Similarity Region of Two-Dimensional Turbulent Jets

[+] Author and Article Information
J. W. Oler

Texas Tech University, Lubbock, Texas

V. W. Goldschmidt

Purdue University, West Lafayette, Ind.

J. Fluids Eng 106(2), 187-192 (Jun 01, 1984) (6 pages) doi:10.1115/1.3243097 History: Received September 14, 1982; Online October 26, 2009

Abstract

The strongest indication of an ordered structure in the similarity region of plane jet flows is the well documented (but controversial) apparent “flapping” behavior. Previously, the negative correlation between probes placed on opposite sides of the jet centerline has been attributed to the periodic displacement of the mean velocity profile centerline about its average position, i.e., a flapping motion. The present investigation is directed at evaluating the premise of an essentially two-dimensional von Karman vortex street as being responsible for the apparent “flapping” behavior.

Copyright © 1984 by ASME
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