基于图像法的气液两相稀疏泡状流气泡参数分析  

Bubble parameters analysis of gas-liquid two-phase sparse bubbly flow based on image method

作　　者：周云龙[1] 周红娟[2] 宋连壮[3] 刘倩[4] 

机构地区：[1]东北电力大学能源与机械工程学院,吉林吉林132012 [2]东北电力大学自动化工程学院,吉林吉林132012 [3]中水北方勘测设计研究有限责任公司机电处,天津300222 [4]滁州职业技术学院机电系,安徽滁州239000

出　　处：《核科学与工程》2012年第2期110-115,共6页Nuclear Science and Engineering

基　　金：国家自然科学基金(50976018)

摘　　要：采用图像法对垂直上升管气液两相流中稀疏上升气泡进行实验测量研究。该方法使用高速摄像机拍摄气泡运动图像,经图像处理后,提取气泡的特征参数,分别绘制稀疏气泡上升过程中速度变化曲线和单个气泡上升过程中面积变化及形心位置变化曲线,分析气泡参数,总结运动规律。实验结果表明,采用图像法可以很好地完成对气泡参数的分析。The sparse rising bubbles of gas-liquid two-phase flow in vertical pipe were measured and studied based on image method. The bubble images were acquired by high-speed video camera systems, the characteristic parameters of bubbles were extracted by using image processing techniques. Then velocity variation of rising bubbles were drawn. Area and centroid variation of single bubble were also drawn. And then parameters and movement law of bubbles were analyzed and studied. The test results showed that parameters of bubbles had been analyzed well by using image method.

关 键 词：垂直管 图像处理 稀疏气泡 特征参数 

分 类 号：O359.2[理学—流体力学]