The objective of this paper is to apply experimental methods to investigate the dynamics of spark-induced bubbles in the vicinity of the elastic and rigid boundary. In the experiment, the temporal evolution of the bubble is recorded by the high-speed camera at the 25, 000 frames per second, as well as corresponding data such as normalized collapse position, the time of bubble collapse, and the velocity of the high-speed liquid jet. Results are presented for a single bubble generated over the elastic and rigid plates, under a wide range of normalized standoff distance from 0.5 to 3.0. The results show that the high-speed jet emitted by non-spherical bubble collapse near the boundary is one of the important factors to cause the destructive erosion pit. With the increase of the standoff distance, the expansion, shrink, jet formation, and rebound of the bubbles vary evidently adjacent to the different boundary conditions. Compared with the rigid boundary cases, the normalized first collapsed position and the time of bubble collapse are much smaller near the elastic boundary. The formation of the high-speed liquid jet in the neighborhood of the elastic/rigid boundary is founded in two different mechanisms. Furthermore, the normalized maximum velocity near the rigid plate is always larger than that near the elastic plate.

本文的目的是应用实验方法研究在弹性和刚性边界附近的火花引起的气泡的动力学。在实验中，高速相机以每秒25，000帧的速度记录气泡的时间演变，并记录了相应的数据，例如归一化的塌陷位置，气泡塌陷的时间和高速度。高速液体喷射。给出的结果是在从0.5到3.0的宽标准距离范围内，在弹性和刚性板上产生的单个气泡。结果表明，非球形气泡在边界附近破裂产生的高速射流是造成破坏性蚀坑的重要因素之一。随着对峙距离的增加，膨胀，收缩，射流形成，气泡的回弹在不同的边界条件附近明显变化。与刚性边界情况相比，在弹性边界附近，归一化的第一个塌陷位置和气泡塌陷的时间要小得多。弹性/刚性边界附近的高速液体射流的形成是通过两种不同的机制建立的。此外，刚性板附近的归一化最大速度始终大于弹性板附近的归一化最大速度。