垂直管道中气液两相流参数的图像检测方法Measurement Method of Gas-liquid Τwo-phase Flow Parameters in the Vertical Pipeline Based on Image Processing
施丽莲,周泽魁,任沙浦
SHI Li lian 1;2 ;ZHOU Ze kui 2;
摘要(Abstract)：
介绍了一种利用数字图像处理技术检测垂直管道中泡状流参数的新方法 ,其中利用差影算法来消除背景噪声 ,利用迭代法对图像进行最佳阈值分割。实验结果表明 ,该方法可以在线测量气液两相流中的气泡尺寸及截面含气率
A new method has been developed to measure flowing parameters in a pipe. The method is based on digital image processing techniques, in which an image subtracted algorithm is used to remove the background noise and an iteration algorithm is used to calculate the optimizing threshold.Experimental results show that the method has the capacity of on line measuring of bubble sizes and gas area fraction in gas liquid two phase flow.
关键词(KeyWords)：
气液两相流;图像处理;气泡;测量参数
gas liquid two phase flow; image processing;bubble;parameter measuring
基金项目(Foundation):
作者(Authors):
施丽莲,周泽魁,任沙浦
SHI Li lian 1;2 ;ZHOU Ze kui 2;
参考文献(References)：
- [1] 劳力云,等.关于气液两相流流型及其判别的若干问题[J]力学进展,2002,32(2):235249
- [2] 何斌,等.VisualC ++数字图像处理[M]北京:人民邮电出版社,2001.
- [3] RaymondF ,RosantJM .Anumericalandexperimentalstudyoftheterminalvelocityandshapeofbubblesinvis cousliquids[J].ChemicalEingeeringScience,2000,55(5):943955.
- [4] ForeLB ,IbrahimBB ,BeusSgVisualMeasurementsofdropletsizeingas liquidannularflow[J]InternationalJournalofMultiphaseFlow28,2002.18951910