表面张力对单空泡运动特性的影响

本文利用高速摄影技术，在摄像电子计算机的辅助下，了在５种不同表面张力（液体－空气）液体中由电火花放电所造成的空泡膨胀及收缩运动过程，记录，分析，计算了空泡的半径Ｒ，泡壁速度Ｒ及加速度Ｒ随时间的变化，结果表明：表面张力加速了空泡的收缩过程，对其膨胀过程则起了延缓作用，通过实验给出了空泡膨胀时间与收缩时间的比值，一般来说，在空泡溃灭以前，表面张力愈小的液体中，空泡泡速度最大值愈大，泡壁的加速度通常具有

Influence of fluid surface tension on the kinematic characteristics of single bubble

The effect of fluid surface tension on the process of bubble collapse and growth is investigated. The bubbles are generated by sparks.Five fluids with different surface tension are to be used. The process was revealed by High-speed photography.The main conclusions of this investigation are: the surface tension of fluid tends to slow down the process of growth and speed up the process of collapse of the bubble's, the smaller the surface tension the bigger the maximum bubbles surface velocity, the acceleration of bubble's surface has three extreme values with the maximum value as high as 104m / s2, it probably is the primary reason of unstability of bubble's surface in collapse process and causes tremendous impact.