On the Dynamics of Flow Structure Development in an Excited Plane Jet

[+] Author and Article Information
Fei-Bin Hsiao

Institute of Aeronautics and Astronautics, National Cheng Kung University, Tainan, Taiwan

Jiann-Min Huang

Aeronautical Research Laboratory, CSIST, Taichung, Taiwan

J. Fluids Eng 116(4), 714-720 (Dec 01, 1994) (7 pages) doi:10.1115/1.2911840 History: Received October 29, 1991; Revised May 17, 1993; Online May 23, 2008


Coherent structure dynamics in the developing region of a plane jet under acoustic excitation is studied experimentally by means of hot-wire measurements and smoke-wire flow visualization. The mean and fluctuation velocity properties, such as mean and fluctuation intensities in both streamwise and transverse directions, turbulent shear stress variations, and the turbulent energy production and energy convection phenomena, are carefully investigated. The results indicate that flow property behavior is closely related to vortex formation and the merging processes, which are the dominant mechanisms governing flow behavior in the developing region of a plane jet.

Copyright © 1994 by The American Society of Mechanical Engineers
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