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Viscous incompressible flow simulation using penalty finite element

机译:使用惩罚有限元的粘性不可压缩流动模拟

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A new set of boundary conditions for velocity-divergence formulation of incompressible Navier-Stokes equations are derived. The boundary is characterized by traction due to friction and surface tension. The pressure being unknown is decoupled from the computation of velocity and is determined by post processing of the velocity field. Numerical results are presented for - classical lid-driven cavity flow-widely used by numerous authors due to its simple geometry and complicated flow behavior and squeezed flow between two parallel plates amenable to analytical solution and compared with benchmark and analytical results.
机译:推导了一种新的不可压缩Navier-Stokes方程的速度分配的新边界条件。由于摩擦和表面张力,边界的特征在于牵引力。未知的压力从速度计算分离,并且通过速度场的处理来确定。由于其简单的几何形状和复杂的流动行为,众多作者呈现了数值结果 - 古典盖子驱动腔流量 - 广泛使用的作者,并且在两个平行板之间挤压了分析溶液的两个平行板之间,并与基准和分析结果相比。

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