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Journal of Flow Visualization and Image Processing
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.5

ISSN 印刷: 1065-3090
ISSN オンライン: 1940-4336

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.v17.i3.10
pages 189-202

A VISUALIZATION STUDY OF FLOW-INDUCED VIBRATION IN TANDEM BRANCHES SYSTEM USING PIV TECHNIQUE

Yanrong Li
Graduate School of Frontier Science, The University of Tokyo, JAPAN
Satoshi Someya
National Institute of Advanced Industrial Science and Technology, Namiki 1-2-1, Tsukuba, Ibaraki, 305-8564, Japan
Koji Okamoto
Graduate School of Frontier Science, Nuclear Engineering Research Laboratory, The University of Tokyo, Japan

要約

A visualization study of flow-induced vibration in the tandem branches system has been carried out using a high time-resolved PIV (Particle Imaging Velocimetry) technique. The main objective of this study is to visualize the fluid flow two-dimensionally in the first and second branch cross sections using the PIV technique. The time-averaged velocity of the flow field, horizontal component of the detected velocity vector fluctuations, and dominant frequencies of those velocity fluctuations by FFT-analysis at different points as well as the pressure distributions at the side and end of the cavity are presented.


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