Performance Evaluation of Mixed Convection in an Inclined Square Channel with Uniform Temperature Walls

Abstract

Abstract Numerical analyses were performed for the effect of inclined angle on the mixing flow in a square channel with uniform temperature walls (Tw = 30 °C) and inlet temperature (T0 = 10 °C). Three-dimensional governing equations were solved numerically for Re = 100, Pr = 0.72 and various inclined angles (from −90° to 90°). Three-dimensional behavior of fluid in a channel was examined for each angle. Thermal performance was evaluated using the relationship between Nusselt number ratio and pressure loss ratio with and without buoyancy induced flow as a parameter of inclined angles. High heat transfer and low pressure loss region was from −15° to −60° in thermal performance using mean Nusselt number ratio.