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Analysis of flow in a square cavity with an oscillating top wall
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 Title & Authors
Analysis of flow in a square cavity with an oscillating top wall
Min, Byeong-Gwang; Jang, Geun-Sik;
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 Abstract
The flow induced by the oscillatory motion of a solid body is important in a number of practical problems. As the solid boundary oscillates harmonically, there is steady streaming motion invoked by the Reynolds stresses, which could cause extensive migration of the fluid during a period of fluid motion. We here analyzed the flow in a square cavity with an oscillating top wall for the parameters which make the time derivatives and the convective terms equally important in the entire cavity flow. The full Navier-Stokes equations are solved by the second-order time accurate Momentum Coupling Method which is devised by the authors. The particular numerical scheme does not need subiteration at each time step which is usually a required process to calculate the incompressible Navier-Stokes equations. The effect of two parameters, the Reynolds number and the frequency parameter, on the oscillatory flow has been investigated.
 Keywords
Incompressible Navier-Stokes Equations;Oscillating Cavity Flow;Momentum Coupling Method;
 Language
Korean
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