Heat and Mass Transfer Analysis of Developing Turbulent Flow in a Square Duct

Abstract

A numerical analysis has been performed on three-dimensional developing turbulent flow in a square duct using a modified Reynolds stress equation model and transport equation model for turbulent flux. Special attention was paid to the relation between model constants and Reynolds stress distribution and the developing process of secondary flow of the second kind. Moreover, the method using a turbulent heat flux model was able to precisely predict the mean Nusselt number.