A numerical calculation has been carried out to investigate the mixed convection heat transfer in inclined rectangular ducts with wall transpiration. The vorticity-velocity method is employed to solve the governing equations. The present paper particularly addresses the effects of the independent parameters, namely, mixed convection parameter Δ, modified Rayleigh number Ra*, wall Reynolds number Rew and aspect ratio γ. The predicted results show that either wall injection or wall suction has a considerable impact on the flow structure and heat transfer performance. Additionally, it was found that for injection case Rew<0, the Nusselt number Nu is retarded with an increase in the wall Reynolds number Rew, but the trend is reverse for the suction flow Rew>0.

Issue Section:
Technical Notes
Keywords:
laminar flow, transpiration, flow through porous media, vortices, forced convection, natural convection, Heat Transfer, Laminar, Mixed Convection, Three-Dimensional
Topics:
Ducts, Flow (Dynamics), Heat transfer, Mixed convection, Transpiration, Reynolds number, Rayleigh number, Transport phenomena, Buoyancy, Suction, Forced convection
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