Some Boundary Layer-Porous Wall Coupling Effects in Laminar Flows With Surface Injection

[+] Author and Article Information
D. A. Nealy

Heat Transfer Section, Department of Engineering Sciences, Allison Division, General Motors Corporation, Indianapolis, Indiana

P. W. McFadden

School of Mechanical Engineering, Purdue University, Lafayette, Indiana

J. Eng. Power 92(3), 257-266 (Jul 01, 1970) (10 pages) doi:10.1115/1.3445350 History: Received October 08, 1969; Online July 14, 2010


Using the integral form of the laminar boundary layer thermal energy equation, a method is developed which permits calculation of thermal boundary layer development under more general conditions than heretofore treated in the literature. The local Stanton number is expressed in terms of the thermal convection thickness which reflects the cumulative effects of variable free stream velocity, surface temperature, and injection rate on boundary layer development. The boundary layer calculation is combined with the wall heat transfer problem through a coolant heat balance which includes the effect of axial conduction in the wall. The highly coupled boundary layer and wall heat balance equations are solved simultaneously using relatively straightforward numerical integration techniques. Calculated results exhibit good agreement with existing analytical and experimental results. The present results indicate that nonisothermal wall and axial conduction effects significantly affect local heat transfer rates.

Copyright © 1970 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In