壁面与自由液面联合作用下气泡动态特性实验研究

PDF(1900 KB)

振动与冲击 ›› 2013, Vol. 32 ›› Issue (13) : 112-117.

论文

壁面与自由液面联合作用下气泡动态特性实验研究

初文华1，张阿漫1，王诗平1

作者信息 +

Experimental Study on Bubble Pulse Features under the Combined Action of Wall and Free Surface

Wenhua Chu 1, Aman Zhang 1, Shiping Wang

Author information +

文章历史 +

摘要

壁面与自由液面联合作用下，气泡的动态特性与单独一个边界条件作用时相比要复杂很多，难于从理论角度分析探讨。为深入探究壁面与自由液面联合作用下的气泡动态特性，采用安全性高且实验效果理想的200V直流电压电火花气泡发生装置生成气泡，依次改变气泡发生位置距壁面及自由液面的距离，同时采用高速运动分析系统对不同工况下的实验结果进行采集与分析，得到了壁面与自由液面联合作用下的气泡形态变化，同时通过对大量实验数据的总结归纳，得到壁面与自由液面联合作用对气泡脉动周期、迁移轨迹及气泡内射流方向的影响规律，从而为相关的理论与数值研究提供参考。

Abstract

Under the combined action of wall and free surface, the bubble shows more complex pulse features than that under either of the two boundary conditions. It is hard to be analyzed theoretically. In order to study the bubble pulse features under the combined action of wall and free surface, an electric circuit with 200 voltages is designed to generate discharge bubbles and the distances from bubble center to wall and free surface are changed in turn. The high-speed motion analytic system is used to collect and analyze the experimental results under different work conditions. The bubble shape variation under the combined action of wall and free surface is obtained. Through large scale of experimental data, the influences of combined action of wall and free surface on the bubble pulse period, the bubble moving trace and the inside jet direction are concluded, which provides references for the relevant theoretical and numerical research.

导出引用

初文华;张阿漫;王诗平. 壁面与自由液面联合作用下气泡动态特性实验研究[J]. 振动与冲击, 2013, 32(13): 112-117

Wenhua Chu;Aman Zhang;Shiping Wang . Experimental Study on Bubble Pulse Features under the Combined Action of Wall and Free Surface[J]. Journal of Vibration and Shock, 2013, 32(13): 112-117