Visualization Measurement and Numerical Analysis of Internal Flow in Cross-Flow Fan

[+] Author and Article Information
Hiromu Tsurusaki

Department of Mechanical Engineering, Fukuyama University, Fukuyama, Hiroshima, Japan

Yoshinobu Tsujimoto, Yoshiki Yoshida

Department of Mechanical Engineering, Osaka University, Toyonaka, Osaka, Japan

Koichi Kitagawa

Toshiba, Co., Ltd., Yokohama, Kanagawa, Japan

J. Fluids Eng 119(3), 633-638 (Sep 01, 1997) (6 pages) doi:10.1115/1.2819291 History: Received February 01, 1996; Revised December 04, 1996; Online December 04, 2007


Measurements of the internal flow velocity distributions in a cross-flow fan were made by particle-tracking velocimetry (PTV). The flow paths (pathlines) were photographed using a digital camera and analyzed using a computer program developed by Tsurusaki and Urata (1989) in order to obtain the velocity distributions. From the velocity distributions, the vorticity distributions were calculated and the vorticity supply and diffusion in the eccentric vortex region was discussed based on an axisymmetric vortex model. A numerical simulation was carried out using a random walk model. The work done by the impeller was also discussed based on the measured velocity distributions.

Copyright © 1997 by The American Society of Mechanical Engineers
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