Journal of Flow Visualization and Image Processing

ISSN for PRINT: 1065-3090

For Online Access

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2005, Volume12

Issue 4

142 pages

DOI: 10.1615/JFlowVisImageProc.v12.i4

Issue price - $154.00

Shinzaburo Umeda
Department of Architecture and Civil Engineering, Fukuyama University, Gakuen-cho, Fukuyama, Hiroshima, 729-0292, Japan

Wen-Jei Yang
Department of Mechanical Engineering and Applied Mechanics, University of Michigan, Ann Arbor, Michigan 48109, U.S.A.

Flow network consisting of a system of intersecting tubes or channels is most abundant in nature such as a circulatory system in a human body, drain system in soils, and others. Flow characteristics in flow networks have been investigated for two decades, including a single pair of cross flow and multiple pairs forming diamond-shaped cylinder bundles. Recently, research has been extended into the second generation, namely composite flow network consisting of conventional (the first generation) flow networks arranged in series, parallel, and their combination. This step of investigation is analogous to the simulation of the circulatory flow system.
An experimental study is performed on a composite flow network consisting of one flow network in series with two in parallel sandwiching a thin-film jet. Particle-injection type flow visualization method, particle image velocimetry (PIV), and laser Doppler velocimetry (LDV) are employed to determine flow patterns, velocity vector distribution, vorticity distribution, Reynolds-stress distribution, and power spectral distribution. It is disclosed that a thin-film jet may be stabilized by means of a composite flow network.

DOI: 10.1615/JFlowVisImageProc.v12.i4.50 Download article, 389-408 pages

Article price - $35.00

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