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Journal of Flow Visualization and Image Processing
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.1

ISSN Imprimer: 1065-3090
ISSN En ligne: 1940-4336

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.v9.i4.60
14 pages

CIRCULAR WALL JET ISSUING ALONG A CYLINDER (WAVELET ANALYSIS AND FLOW VISUALIZATION)

M. Nakashima
Kagoshima National College of Technology, Kagoshima, Japan Hayato-cho, Kagoshima, 899-5193, Japan
T. Tabata
Kagoshima National College of Technology, Kagoshima, Japan Hayato-cho, Kagoshima, 899-5193, Japan
Hui Li
Department of Mechanical Engineering, Kagoshima University, Korimoto, Kagoshima, Japan
T. Nozaki
Faculty of Engineering, Kagoshima University, Kagoshima, Japan

RÉSUMÉ

The paper is concerned with the circular jet flow issuing along the circular cylinder and in the longitudinal direction. The flow aspect has been investigated by means of flow visualization and flow measurements. In order to grasp the flow characteristics, the attention is focused on the flow feature in the cross section normal to the jet flow. These flow aspects at several downstream locations have been visualized by the PIV system and measured using the hot-wire anemometer system. The visualized image information has been compared with the results of the wavelet analysis obtained by flow measurements.


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