Indexed by:Journal Article

Date of Publication:2013-08-01

Journal:INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER

Included Journals:EI、SCIE

Volume:63

Page Number:183-190

ISSN:0017-9310

Key Words:Convective heat transfer; Navier-Stokes equations; Energy equation; Boundary element method; Steady incompressible viscous flow

Abstract:In this paper, a new boundary-domain integral equation for solving energy equation in convective heat transfer problems is derived. The derived integral equation accounts for fluid velocity which is computed using the velocity boundary-domain integral equations presented in [2,3] (X.W. Gao, 2004, 2005). Numerical implementation of these integral equations is discussed for steady incompressible fluid flows, in which the velocity and pressure integral equations are uncoupled from the temperature equation, and thus can be solved separately. By substituting the velocity, velocity gradient, and pressure integral equations into the energy integral equation, temperatures can be computed without iterative processes. Two numerical examples for 2D problems are given to validate the proposed method. (C) 2013 Elsevier Ltd. All rights reserved.