Parallel Porous Plate Channel Flow Characteristics Resulting From Nonuniform Entry Velocity Profiles

[+] Author and Article Information
J. R. Doughty

USAF, Chemical Mixing Section, Advanced Laser Technology, Div., Air Force Weapons Lab., Kirtland AFB, N.M.

J. Fluids Eng 97(1), 78-81 (Mar 01, 1975) (4 pages) doi:10.1115/1.3447220 History: Received August 14, 1974; Online October 12, 2010


The author has found a class of entry velocity profiles that develop into the Raithby fully developed second solution for flow in a parallel porous plate channel with strong suction. The entry profiles of interest are characterized by a velocity defect at the channel centerline. Two numerical solution techniques are employed. The faster first technique involving solution of the boundary layer equations is used to predict overall trends of profile development. The boundary layer solutions are compared to exact solutions of the Navier-Stokes equations. A detailed examination was made of the double Poiseuille entry condition which was found to develop into Raithby’s profile.

Copyright © 1975 by ASME
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