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RESEARCH PAPERS: Forced Convection

Numerical Simulation on Heat Transfer and Fluid Flow Characteristics of Arrays With Nonuniform Plate Length Positioned Obliquely to the Flow Direction

[+] Author and Article Information
L. B. Wang, W. Q. Tao

School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China

G. D. Jiang

Department of Mechanical Engineering, Lanzhou Railway Institute, Lanzhou 730070, China

H. Ozoe

Institute of Advanced Material Study, Kyushu University 86, Kasuga 816, Japan

J. Heat Transfer 120(4), 991-998 (Nov 01, 1998) (8 pages) doi:10.1115/1.2825920 History: Received April 28, 1997; Revised May 04, 1998; Online December 05, 2007

Abstract

The periodically fully developed laminar heat transfer and pressure drop of arrays with nonuniform plate length aligned at an angle (25 deg) to air direction have been investigated by numerical analysis in the Reynolds number range of 50–1700. The body-fitted coordinate system generated by the multisurface method was adopted to retain the corresponding periodic relation of the lines in physical and computational domains. The computations were carried out just in one cycle. Numerical results show that both the heat transfer and pressure drop increase with the increase in the length ratio of the long plate to the short plate, and decrease with the decrease in the ratio of transverse pitch to the longitudinal pitch. The numerical results exhibit good agreement with available experimental data.

Copyright © 1998 by The American Society of Mechanical Engineers
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