Numerical Analysis Of Grashof Number, Reynolds Number And Inclination Effects On Mixed Convection Heat Transfer In Rectangular Channels

摘要

Mixed convection heat transfer in rectangular channels has been investigated computationally under various operating conditions. The lower surface of the channel is subjected to a uniform heat flux, sidewalls are insulated and adiabatic, and the upper surface is exposed to the surrounding fluid. Solutions were obtained for Pr=0.7, inclination angles 0 deg ≤θ≤90 deg, Reynolds numbers 50≤ Re ≤1000, and modified Grashof numbers Gr=7.0×10~5 to 4.0×10~6. The three-dimensional elliptic governing equations were solved using A finite volume based computational fluid dynamics (CFD) code.