Oscillatory flow forced convection in a shallow enclosure with sinusoidal bottom wall temperature

Effects of acoustic streaming on convective heat transfer in a shallow, air-filled, two-dimensional rectangular enclosure with spatially non-uniform temperature distribution of bottom wall are investigated numerically. Excitation of the sound wave in the enclosure is achieved by a periodic motion of the enclosure left wall. The top wall of the enclosure is isothermal while the vertical walls are adiabatic. Compressible form of the Navier-Stokes equations and energy equation are utilized to simulate the flow and temperature fields in the enclosure and solved by Flux Corrected Transport algorithm. Influences of the vibration amplitude and bottom wall temperature profiles are studied. The results demonstrate that the acoustic streaming pattern depends on the temperature profile of the bottom wall and oscillation amplitude. Structure of the flow field in the enclosure affects the rate of heat transfer. The results obtained may have progressive effect on the design of various heat removal applications.