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应用VOF方法的水平圆柱入水数值模拟

DOI: doi:10.3969/j.issn.1006-7043.2011.11.008

Keywords: VOF方法, 动网格, 入水冲击, 圆柱

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Abstract:

为了研究水平圆柱砰击入水问题,建立了数值水池,应用VOF结合动网格技术的方法对零浮力水平圆柱入水过程的气液两相流动和刚体运动耦合的问题进行了数值模拟.捕捉了圆柱入水过程中射流的形成、运动和空气垫效应等自由表面的变化现象,模拟了圆柱竖直运动过程;讨论了湍流粘性对圆柱入水的影响.结果表明:圆柱入水的数值模拟结果和实验数据符合很好;圆柱运动轨迹同样和实验吻合;湍流粘性对圆柱入水过程影响很小.

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