Interaction between bubble and air-backed plate with circular hole

Interaction between bubble and air-backed plate with circular hole
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气泡与圆孔气垫板的相互作用

DOI:
10.1063/1.4953010
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发表时间:
2016-06
期刊:
影响因子:
4.6
通讯作者:
Zhang A. M.
Zhang A. M.
中科院分区:
工程技术2区
文献类型:
--
作者:
Liu Y. L.;Wang S. P.;Zhang A. M.

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本文研究了一个剧烈运动的空泡与一个带有圆孔的空气背板之间的非线性相互作用。采用不可压位势理论和边界积分方法建立了数值模型。采用双节点技术解决了固壁与自由面相交引起的超定问题。利用高速摄影机对带圆孔的空气背板附近的电火花气泡进行了实验观察。数值计算结果与实验结果吻合较好。实验和数值计算结果都表明,在气泡的膨胀和收缩过程中出现了多级尖峰。仔细的数值模拟表明,这种特殊类型的尖峰是由边界条件的不连续性引起的。分析了孔的大小和深度对气泡和尖峰动力学的影响。
This paper investigates the nonlinear interaction between a violent bubble and an air-backed plate with a circular hole. A numerical model is established using the incompressible potential theory coupled with the boundary integral method. A double-node technique is used to solve the overdetermined problem caused by the intersection between the solid wall and the free surface. A spark-generated bubble near the air-backed plate with a circular hole is observed experimentally using a high-speed camera. Our numerical results agree well with the experimental results. Both experimental and numerical results show that a multilevel spike emerges during the bubble’s expansion and contraction. Careful numerical simulation reveals that this special type of spike is caused by the discontinuity in the boundary condition. The influences of the hole size and depth on the bubble and spike dynamics are also analyzed.
DOI: 10.1017/s0022112086000988
发表时间: 1986-09-01
影响因子: 3.7
作者:
BLAKE, JR;TAIB, BB;DOHERTY, G
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