Lattice Boltzmann Simulation of Mixed Convection in an Inclined Cavity with a Wavy Wall

In the present study, the effect of inclination on mixed convection heat transfer and fluid flow in a lid-driven cavity with a wavy wall is investigated using the lattice Boltzmann method. The double-population approach with second-order accuracy at velocity and temperature fields is used to simulate the curved boundary in the lattice Boltzmann method. The problem is investigated for different Richardson numbers 90.1 <= Ri <= 10), curve amplitudes 90.05 <= A <= 0.25), and inclination angles 90 <=theta <= 180) when the Reynolds number is equal to 100. Results show that the inclination phenomenon has important effects on both flow and temperature fields at high Richardson numbers. It is also found that the inclination loses its role on mixed convection heat transfer from the wavy wall by the increase of the curve amplitude of the wavy wall for all Richardson numbers.(C) 2012 Wiley Periodicals, Inc.