Natural Convection in an Inclined Rectangular Channel Heated From the Bottom Surface

[+] Author and Article Information
H. Inaba

Department of Mechanical Engineering, Kitami Institute of Technology, Koen-Cho 165, Kitami, Hokkaido 090, Japan

J. Heat Transfer 108(4), 764-769 (Nov 01, 1986) (6 pages) doi:10.1115/1.3247010 History: Received January 02, 1985; Online October 20, 2009


The phenomenon of natural convection in an inclined rectangular channel heated from the bottom surface has been experimentally investigated. The experiments covered a range of modified Rayleigh numbers Rad * , by using the shortest distance d between two opposing side walls as a representative length, between 1.8 × 102 and 6 × 105 , and a range of inclination angles of the side wall with respect to the horizontal θ between 30 deg and 90 deg. Air was used as the working fluid. An experimental correlation equation is given for the Nusselt number Nud as a function of sin θ and Rad * for W/l (width to length of the channel) = 0.1–0.5.

Copyright © 1986 by ASME
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