利用数字图像识别技术的两相流参数检测研究  

Study on Measurement Method of Two-Phase Flow Parameters Based on Digital Image Processing Techniques

作　　者：李小燕[1] 蔡晋辉[2] 

机构地区：[1]上海交通大学核科学与系统工程系,上海200030 [2]浙江大学控制工程系,浙江杭州310027

出　　处：《原子能科学技术》2006年第B09期15-18,共4页Atomic Energy Science and Technology

摘　　要：气液两相流的研究在核反应堆工程中具有重要的应用价值。文章以处理高温颗粒沉降冷池实验图像为例，介绍基于数字图像识别技术的气液两相流参数检测方法。通过利用差影算法减少背景噪声、图像的二值化处理和填充处理、气泡特征分析、气泡中心坐标的确定等得到两相流中气泡、液滴和颗粒的尺寸和运动速度以及气膜分布等两相流重要参数。The study reactor engineering. of gas-liquid two-phase flow has important applications in nuclear The paper introduces a measurement method of two-phase flow parameters based on digital image processing techniques through processing image of an experiment study of the transient drag property on the high-temperature particles falling into the cold liquid pool. The paper gets some information about the outlines, velocity, areas, and change of gas films and internal contracts of balls in different sizes by using subtract operation, binary image, fill holes of images, and so on.

关 键 词：两相流 差影算法 二值化 图像填充 图像处理 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]