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RESEARCH PAPERS

Near-Wake Flow of a V-Gutter With Slit Bleed (Data Bank Contribution)

[+] Author and Article Information
Jing-Tang Yang, Go-Long Tsai

Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, Taiwan 30043

J. Fluids Eng 115(1), 13-20 (Mar 01, 1993) (8 pages) doi:10.1115/1.2910096 History: Received February 06, 1992; Online May 23, 2008

Abstract

The cold-flow characteristics of a v-shape flame holder with flow bleed from a slit located at the leading edge have been investigated. According to experimental evidence, a nonsymmetric wake structure is developed behind the symmetric slit v-gutter. The flow through the slit induces greater reverse flow and greater back pressure in the near wake. It also provokes more extensive transport across the shear layers and reduces both the turbulent intensity and the Reynolds shear stress of the wake flow. These results indicate that the slit v-gutter can have a better flame holding ability and less pressure loss compared with the traditional v-gutter. In view of fluid dynamics features, the slit v-gutter is indeed a potentially useful design of flame holder.

Copyright © 1993 by The American Society of Mechanical Engineers
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