Abstract
This paper describes the effect of axial angle on mixed convection in horizontal square duct with uniform wall temperature by the three-dimensional numerical analysis. The velocity fields and the pressure and temperature distributions obtained by SIMPLE method using non-dimensional governing equations. The QUICK scheme was applied to the convection term of momentum and energy equations. Numerical results show that the three-dimensional flow behavior was influenced by axial angles. The heat transfer behavior was discussed corresponding to the flow, and the heat transfer enhancement was different about 10% by axial angles.
