Critical conductivity ratio for conjugate heat transfer in eccentric annuli
International Journal of Numerical Methods for Heat & Fluid Flow
ISSN: 0961-5539
Article publication date: 1 May 2001
Abstract
Conjugate laminar forced convection heat transfer in the entry region of eccentric annuli is numerically investigated. Heat transfer parameters are presented for a fluid of Pr = 0.7 flowing in an annulus of radius ratio 0.5 for four values of dimensionless eccentricity ranging from 0.1 to 0.7. Solid‐fluid conductivity ratio (KR) is varied to cover the range for practical cases with commonly encountered inner and outer tube thickness. Boundary conditions applied are isothermal heating of the inner surface of the core tube, while the outer surface of the external tube is maintained at the inlet fluid temperature. Limits for KR above which the conjugation can be neglected are obtained.
Keywords
Citation
El‐Shaarawi, M.A.I. and Haider, S.A. (2001), "Critical conductivity ratio for conjugate heat transfer in eccentric annuli", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 11 No. 3, pp. 255-279. https://doi.org/10.1108/09615530110385120
Publisher
:MCB UP Ltd
Copyright © 2001, MCB UP Limited