EFFECT OF RAYLEIGH NUMBER ON MIXED CONVECTION FLOW AND HEAT TRANSFER IN AN INCLINED TWO-SIDED LID-DRIVEN CAVITY SUBJECTED TO A VARIABLE PROPERTIES NANO-FLUID

To analyze the heat transfer and fluid flow of mixed convection through nano-fluid in an inclined square cavity having two hot obstacles, a numerical method based on the finite volume approach is applied. In this investigation Al2O3-water at T=300 and diameter of nanoparticle equal to 40, have been used as working fluid. The study has been executed for the Rayleigh number between 104 and 105. Results show that increasing Ra number leads to heat transfer increases.