Three dimensional analysis of natural convection and entropy generation in a sharp edged finned cavity

A computational study has been performed to make a computational analysis of natural convection and entropy generation in a sharp edged finned cavity. Three dimensional analysis has been done by solving governing equations with a written computational code in Fortran. The study is performed for fin inclination angles from −60° to 60°, Ra = 10 5 , Pr = 0.7, R c (conductivities ratio) changes from 0.01 to 100 and irreversibility coefficient is taken as φ = 10 - 5 . It is observed that higher values of thermal conductivity ratio (Rc ⩾ 1) do not affect entropy generation due to heat transfer and Bejan number.