FREE CONVECTION AND ENTROPY GENERATION INSIDE A VERTICAL INPHASE WAVY CAVITY

We examined the nature of entropy generation along with heat transfer and fluid flow characteristics inside a cavity made of two horizontal straight walls and two vertical wavy walls. Wavy walls are assumed to follow a profile of cosine curve. Horizontal straight walls are kept adiabatic, while the bent walls are isothermal but kept at different temperatures. Laminar natural convection inside the cavity is considered. Governing differential equations were discretized using the Finite Volume method with collocated variable arrangement. Simulation was carried out for a range of wave ratio, λ=0.00-0.6, aspect ratio, A=1.0-4.0, Rayleigh number, Ra=10 0 -10 7 for a fluid having Prandtl number equal to 1.0. Results are presented in the form of Nusselt number, entropy generation number, Bejan number, streamlines, and isothermal lines