numerical simulation of heat transfer in a cavity with discrete heat source using lattice Boltzmann method

In this paper, square cavitywith air inside, two heaters situated at its lower wall, its upper wall insulated, and its two side walls kept at a constant temperature. The Lattice Boltzmann method has been used for simulation in this study; and the overall goals of this research are to optimize the installation length of heaters and to explore the effects of the amplitude and wavelength of thermal flux fluctuation and Riley’s number. The findings indicate that the flow within the cavity stabilizes more quickly by increasing the difference between the oscillation amplitude and period of thermal flux in heaters.In this paper, square cavitywith air inside, two heaters situated at its lower wall, its upper wall insulated, and its two side walls kept at a constant temperature. The Lattice Boltzmann method has been used for simulation in this study; and the overall goals of this research are to optimize the installation length of heaters and to explore the effects of the amplitude and wavelength of thermal flux fluctuation and Riley’s number. The findings indicate that the flow within the cavity stabilizes more quickly by increasing the difference between the oscillation amplitude and period of thermal flux in heaters.