Two-dimensional liquid column and liquid droplet impact on a solid wedge
Two-dimensional liquid column and liquid droplet impact on a solid wedge
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DOI：
10.1093/qjmam/hbm020
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发表时间：
2007-11
影响因子：
0.9
通讯作者：
G. Wu
中科院分区：
文献类型：
--
作者：
G. Wu
分析了二维液柱或二维液滴撞击固体楔的流体动力学冲击。用复速度势和边界元法求解了该问题。使用拉伸坐标系，其通过正常笛卡尔坐标系与适当选择的时变长度尺度的比率来定义。首先对液体楔撞击进行了数值模拟。从时域方法的结果被发现是在一个很好的协议与相似的解决方案。对椭圆形液滴的撞击也进行了模拟。引入了一个条件平分的液滴，这是发现提供稳定和收敛的结果。
The hydrodynamic impact due to a two-dimensional (2D) liquid column or a 2D liquid droplet hitting on a solid wedge is analysed. The problem is solved using the complex velocity potential together with the boundary element method. A stretched coordinate system is used, which is defined through the ratio of the normal Cartesian coordinate system to an appropriately chosen time-varying length scale. Numerical simulations are first made for impact by a liquid wedge. The results from the time-domain method are found to be in a good agreement with the similarity solution. Simulations are also made for impact by an elliptic droplet. A condition for bisection of the droplet is introduced, which is found to provide stable and converged results.