Article ID Journal Published Year Pages File Type
654105 International Communications in Heat and Mass Transfer 2010 5 Pages PDF
Abstract

In this study, viscous heating effect on convective flow in an unheated adiabatic duct is studied analytically and numerically. Two different geometries are considered: circular duct and plane duct between two parallel plates. Two new parameters are defined for internal convection studies: adiabatic wall temperature and adiabatic bulk temperature. Variations of these two parameters with varying intensity of viscous dissipation effect are determined. In view of the results obtained, usage of the constant wall temperature thermal boundary condition when viscous dissipation is included is discussed and questioned.

Related Topics
Physical Sciences and Engineering Chemical Engineering Fluid Flow and Transfer Processes
Authors
, ,