Abstract
In this study, a mathematical model of heat transfer and fluid flow in air gap between hot surface and air-permeable sheet with periodic oscillation is developed. In the model, an arbitrary Lagrangian-Eulerian Finite element method is used to simulate the periodic oscillation of the sheet such as stroke distance. The effect of periodic motion of the sheet on the heat transfer and fluid flow in the air gap is discussed. From the results, the oscillation of air permeable sheet enhances the Nusselt number on the hot surface. In addition, an increase in the stroke distance of the oscillation improves the heat transfer characteristics.
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