ISSN Online: 2377-424X
ISBN Print: 0-89116-299-2
International Heat Transfer Conference 7
A NEW APPROACH FOR CALCULATING HEAT TRANSFER CHARACTERISTICS OF TURBULENT WALL FLOWS
Abstract
The purpose of this study is to couple the
two equations K-ε model for the turbulent core with a general surface renewal model of the turbulent
burst phenomenon for the wall region. Numerical
computations are obtained for heat transfer characteristics associated with tube flow which are in
good agreement with experimental data over a wide
range of Prandtl number. Although the present application
deals with constant property fully turbulent
well developed tube flow, the underlying model of wall turbulence is felt to provide a fundamental basis for generalization to account for other factors such as variable properties, strong pressure gradients, transitional turbulence, etc.