Numerical Simulation of MHD Natural Convection and Entropy Generation in Semicircular Cavity Based on LBM

To study the natural convection and entropy generation of a semicircular cavity containing heat source under magnetic field, based on single-phase lattice Boltzmann method, closed model with in upper (Case 1) lower 2) is proposed. The filled CuO-H2O nanofluid, hot placed center cavity. effects Rayleigh number, Hartmann number field inclination average Nusselt are studied. results show that increase can promote transfer performance nanofluids. When less than 30, increasing function at time total reaches its maximum when 30. As increases, decreasing number. larger greater influence angle system. Under same Hartman flow Case 2 increases by 29% compared 1. surfaces 5.77%