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RESEARCH PAPERS

Highly Accelerated Compressible Laminar Boundary Layer Flows With Mass Transfer

[+] Author and Article Information
A. Wortman

Aerodynamics Research Branch, Northrop Corp., Hawthorne, Calif.

A. F. Mills

University of California, Los Angeles, Calif.

J. Heat Transfer 93(3), 281-289 (Aug 01, 1971) (9 pages) doi:10.1115/1.3449812 History: Received March 31, 1970; Revised October 21, 1970; Revised March 04, 1971; Online August 11, 2010

Abstract

Exact numerical solutions have been obtained for highly accelerated self-similar laminar boundary layer flows with and without mass transfer. Values of the acceleration parameter β in the range 0 to 20 were considered. Variable gas properties were realistically modeled by assuming ρ ∝ h−1 , μ ∝ hω , and Pr = constant. The results presented show the dependence of wall shear stress, heat transfer rate, and displacement thickness on the problem parameters which include β, Mach number, wall enthalpy ratio, mass transfer rate, ω and Pr . The inadequacy of solutions obtained under the simplifying assumptions of Pr = 1.0 and ω = 1.0 is clearly displayed. The numerical solution procedure employed proved quite adequate for a class of problem which has presented serious difficulties to previous investigators.

Copyright © 1971 by ASME
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