震动条件下水中气泡上升过程试验研究  

Experimental analysis on bubble rising behavior excited by oscillation

作　　者：蔡杰进[1,2] 钟明煌 曾细香[2] 王可[2] 林永成[2] 渡边正 

机构地区：[1]中山大学中法核工程与技术学院,广东珠海519082 [2]中山大学物理科学与工程技术学院,广东广州510275 [3]福井大学核工程研究所,日本福井914-0055

出　　处：《热力发电》2013年第10期49-53,共5页Thermal Power Generation

基　　金：中山大学“百人计划”引进人才科研启动经费(45000-3210001);中央高校基本科研业务费专项资金(11lgpy90);教育部“新世纪优秀人才支持计划”(NCET-10-0846)

摘　　要：通过试验手段对震动条件下气泡在水中的上升过程进行了观测,主要分析了不同初始半径的气泡在不同频率、不同振幅的震动加速度作用下的行为特征。结果表明:振幅越大、频率越小、气泡越小,则气泡的水平偏移越大;振幅、频率以及初始气泡体积增大,均会导致气泡形变增大;随着震动幅度、频率的增加,气泡上升速度的振荡幅度略有减小。Experiments were carried out to observe the behavior of bubble rising in water excited by oscillation.The characteristics of bubbles with different initial diameters excited by oscillation with different frequencies and amplitudes were investigated.The results showed that,large amplitude,low oscillation frequency and small bubble would result in large horizontal deviation,and the bubble shape deformation would be greater when the oscillation frequency,amplitude and initial bubble volume got bigger.With an increase in vibration frequency and amplitude,the oscillation amplitude of bubble's rising speed would decrease slightly.

关 键 词：两相流 气泡 震动 水平偏移 形变 上升速度 

分 类 号：TK284[动力工程及工程热物理—动力机械及工程]