Hydrodynamic Development in a Duct With Suction and Blowing

[+] Author and Article Information
G. D. Raithby, D. C. Knudsen

Thermal Engineering Group, Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario, Canada

J. Appl. Mech 41(4), 896-902 (Dec 01, 1974) (7 pages) doi:10.1115/1.3423479 History: Received November 01, 1973; Revised May 01, 1974; Online July 12, 2010


The development of flow in a parallel-plate channel is determined by solving the two-dimensional, elliptic equations of motion for laminar flow. Cases involving blowing, suction, and no mass transfer through the walls are considered, but attention is focused on the wall suction case. It is shown that for strong suction, the hydrodynamically developed solutions for the velocity profile published previously are normally not attained or approached by the developing flow. The results of an experimental investigation are also reported for the wall suction problem, and it is confirmed that hydrodynamically developed velocity profiles are not attained for the range of wall-suction Reynolds numbers tested.

Copyright © 1974 by ASME
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