气泡流动三维可视化成像与测量方法  

Three-dimensional visualization and measurement of bubble flow

作　　者：丛山昊 刘竞婷 吴大转[3] 王贵超[1,2] 魏雪松 陈颂英 CONG Shan-hao;LIU Jing-ting;WU Da-zhuan;WANG Gui-chao;WEI Xue-song;CHEN Song-ying(School of Mechanical Engineering,Shandong University,Jinan 250061,China;Key Laboratory of High Efficiency and Clean Mechanical Manufacture,Ministry of Education,Shandong University,Jinan 250061,China;College of Energy Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]山东大学机械工程学院,山东济南250061 [2]山东大学高效洁净机械制造教育部重点实验室,山东济南250061 [3]浙江大学能源工程学院,浙江杭州310027

出　　处：《高校化学工程学报》2022年第3期354-361,共8页Journal of Chemical Engineering of Chinese Universities

基　　金：国家自然科学青年基金(52006126,51906126);山东省自然科学基金青年项目(ZR2020QE193)。

摘　　要：针对虚拟立体视觉系统测量汇算复杂、成像区域受限等问题,提出一种气泡流动三维可视化成像与测量方法。搭建气泡流动三维可视化成像实验系统,分析影响系统成像的因素和优化设计方法,推导系统设备布置参数公式。以椭圆形喷管气泡生成过程为研究对象,结合双垂直平面投影技术实现三维气泡形态重构。结果表明,该方法的测量相对误差在0.72%以内,有效模拟上升过程中气泡三维形态演变过程和运动轨迹。该方法具有设备调试简单、数据精度高、可操作性强等优点,为不规则喷管气泡生成演化特性研究提供了方案。In order to solve problems of complex calculation and limited imaging areas of virtual stereo vision systems, a three-dimensional visualization and measurement method of bubble flow was proposed. An experimental system for three-dimensional visualization was built, and factors affecting imaging and the optimal design method were analyzed with equipment parameter formula deduced. Bubble formation process in an elliptical nozzle was studied, and the three-dimensional bubble shape reconstruction was realized using two-perpendicular-plane projection techniques. The results show that the relative error of the system measurement is less than 0.72%. The evolution and motion trajectory of the three-dimensional bubble shape in the rising process can be effectively simulated. The method has the advantages of simple equipment debugging,high precision data, and strong operability, which provides a scheme for the research on bubble formation characteristics of irregular nozzles.

关 键 词：气泡流动 可视化实验 三维成像 三维气泡形态分析 轨迹重构 

分 类 号：TB863[一般工业技术—摄影技术] TB21[天文地球—大地测量学与测量工程] TB22