Thermodynamical Modeling of Boundary Layer Flow With Suction and Injection

[+] Author and Article Information
M. Chandrasekar

Department of Mathematics, Vellore Engineering College, Vellore—632014, Tamilnadu, India

J. Appl. Mech 65(3), 764-768 (Sep 01, 1998) (5 pages) doi:10.1115/1.2789121 History: Received May 07, 1997; Revised November 01, 1997; Online October 25, 2007


The variational principle developed by Gyarmati embodying the principles of non-equilibrium thermodynamics is employed to investigate the laminar boundary layer effect on wedge flows with suction and injection. The velocity function is assumed as a simple third-degree polynomial and the variational principle is formulated. The hydrodynamical boundary layer thickness is derived as the Euler-Lagrange equation of the variational principle. The velocity profiles and skin friction values were computed for various values of suction and injection parameter and wedge angle parameter. The comparison of the present solution with an available exact solution establishes the fact that the accuracy is remarkable.

Copyright © 1998 by The American Society of Mechanical Engineers
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