首页 | 本学科首页   官方微博 | 高级检索  
     检索      

不同沙粒底面下气泡脉动特性实验研究
引用本文:张阿漫,肖巍,王诗平,程潇欧.不同沙粒底面下气泡脉动特性实验研究[J].物理学报,2013,62(1):14703-014703.
作者姓名:张阿漫  肖巍  王诗平  程潇欧
作者单位:哈尔滨工程大学船舶工程学院,哈尔滨,150001
基金项目:国家自然科学基金优秀青年科学基金项目(批准号: 51222904)、 国家安全重大基础研究项目(批准号: 613157)、 国家自然科学基金重点项目(批准号: 50939002)和新世纪优秀人才支持计划(批准号: NCET100054) 资助的课题.
摘    要:通过高速摄影系统对电火花气泡与不同沙粒底面间的相互作用进行了实验研究,并改变气泡与沙粒底面之间的距离.实验结果表明:气泡在与沙粒底面的相互作用中会产生两种明显不同的现象,即形成与近刚性壁面类似的气泡射流以及“蘑菇状”气泡,“蘑菇状”气泡撕裂形成两个气泡,随后产生两个反方向的沿轴线方向的射流.沙粒底面边界具有刚性与弹性两种特征.另外,随着气泡与沙粒底面之间的距离d的增大,气泡脉动周期先增大然后减小,存在气泡脉动周期峰值.对于不同的沙粒底面边界,出现气泡脉动周期峰值的距离d随着沙底粒径的增大而越小.

关 键 词:气泡  沙粒直径  电火花  射流
收稿时间:2012-03-19

Experimental study of the interactions between a pulsating bubble and sand particles with different diameters
Zhang A-Man,Xiao Wei,Wang Shi-Ping,Cheng Xiao-Ou.Experimental study of the interactions between a pulsating bubble and sand particles with different diameters[J].Acta Physica Sinica,2013,62(1):14703-014703.
Authors:Zhang A-Man  Xiao Wei  Wang Shi-Ping  Cheng Xiao-Ou
Institution:College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China
Abstract:The interactions between a spark generated bubble and sand particles with different diameters are studied in this paper using a high speed camera. And distance between the bubble and sand particle is varied. The experimental results show that there are two distinct phenomena during the interaction between the bubble and sand particle. On the one hand, the jet formed is much like that near a rigid wall; on the other hand, a mushroom-shape bubble will form, which will split into two bubbles and two jets with opposite directions along the axes will be generated afterwards. Thus, it is found that the sand particle has the characteristics of a rigid wall and an elastic material. In addition, as the distance d between the bubble and sand particle increases, the pulsating period of the bubble will rise to a peak before it reduces. For different sand particles, the distance corresponding to the peak decreases as the diameter of sand particle increases.
Keywords:bubble  diameter of sand particle  electric spark  jet
本文献已被 万方数据 等数据库收录!
点击此处可从《物理学报》浏览原始摘要信息
点击此处可从《物理学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号