Publication Cover
Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 46, 2004 - Issue 9
54
Views
6
CrossRef citations to date
0
Altmetric
Original Articles

NUMERICAL SIMULATION OF CONDUCTION HEAT TRANSFER IN A SYSTEM OF SLOWLY ROTATING CONCENTRIC SHELLS SEPARATED BY SMALL ANNULAR GAP DISTANCES

&
Pages 851-867 | Received 01 May 2004, Accepted 01 Jul 2004, Published online: 17 Aug 2010
 

Abstract

Conduction dominated heat transfer in a system of concentric shells with a very small annulus distance and surface eccentricities is studied numerically using IDEAS TMGTM in conjunction with a user-programmed subroutine to model the heat transfer across the gas layer as a function of eccentricity and rotation rate. Sphere diameters range from 30 cm to 40 cm, annular gap sizes range from 0.5 mm to 1 mm, and eccentricities range from 0.05 mm to 0.25 mm. External thermal gradients are found to be attenuated significantly. The inner surface temperature deltas increase by a factor of 4.5, for a doubling in the eccentricity. A correlation for the effective heat transfer across the inner spheres also is presented.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.