图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
流动显示和图像处理期刊
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.1

ISSN 打印: 1065-3090
ISSN 在线: 1940-4336

流动显示和图像处理期刊

DOI: 10.1615/JFlowVisImageProc.v8.i4.40
13 pages

GAS BUBBLE SIZE AND VELOCITY MEASUREMENTS USING HIGH-SPEED IMAGES OF GAS-LIQUID FLOWS

John Hiscock
Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, Newfoundland, A1B 3X5, Canada
Chan Y. Ching
Department of Mechanical Engineering, McMaster University, Hamilton, Ontario, L8S4L7, Canada

ABSTRACT

A quantitative flow visualization system has been developed to measure gas bubble size and velocities of gas-liquid flows. The images are acquired using a high-speed digital imaging system. An image processing algorithm based on standard edge-detection routines and morphological operations are used to demarcate the boundaries of the gas bubbles and obtain the bubble size distribution. The displacement of the bubbles between two consecutive frames is obtained through a cross-correlation analysis between the frames. Results obtained from the flow visualization and image analysis techniques are in good agreement with simultaneous measurements using hot-film anemometry.


Articles with similar content:

PIXEL QUANTIZATION INFLUENCE ON REAL-TIME CROSS-CORRELATION COMPUTATION FOR AN EMBEDDED PIV CONTROL SYSTEM
Journal of Flow Visualization and Image Processing, Vol.15, 2008, issue 3
Habib Ben Aissia, Jacques Jay, Taoufik Filali, Nabila Filali
BUBBLE TRACKING IN BUBBLY GAS-LIQUID TWO-PHASE FLOW IN POROUS STRUCTURES
Multiphase Science and Technology, Vol.27, 2015, issue 1
Carmen Wälchli, Philipp Rudolf von Rohr, Marco Altheimer
EXPERIMENTAL INVESTIGATION OF THE CORRELATION BETWEEN NOZZLE FLOW AND SPRAY USING LASER DOPPLER VELOCIMETER, PHASE DOPPLER SYSTEM, HIGH-SPEED PHOTOGRAPHY, AND X-RAY RADIOGRAPHY
Atomization and Sprays, Vol.20, 2010, issue 1
Barbara Heine, Benjamin Balewski, Cameron Tropea
Error Correction for High Temperature Measurements by Use of Thermal-Noise Method
Journal of Automation and Information Sciences, Vol.31, 1999, issue 11
Vladislav T. Kondratov
COMPARING THREE IMAGE PROCESSING ALGORITHMS TO ESTIMATE THE GRAIN-SIZE DISTRIBUTION OF POROUS ROCKS FROM BINARY 2D IMAGES AND SENSITIVITY ANALYSIS OF THE GRAIN OVERLAPPING DEGREE
Special Topics & Reviews in Porous Media: An International Journal, Vol.6, 2015, issue 1
Arash Rabbani, Shahab Ayatollahi