Characteristics Measurement of Dense Bubbly Flow based on Laser Scanning

被引：0

作者：

Xue, Ting ^{[1
]}

Li, Songlin ^{[1
]}

Li, Zhuping ^{[1
]}

机构：

[1] Tianjin Univ, Coll Elect & Informat Engn, Tianjin Key Lab Proc Measurement & Control, Tianjin 300072, Peoples R China

来源：

2022 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE (I2MTC 2022) | 2022年

基金：

中国国家自然科学基金;

关键词：

dense bubbly flow; laser scanning; bubble velocity; void fraction; three-dimensional reconstruction; COLUMN;

D O I：

10.1109/I2MTC48687.2022.9806520

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Bubbly flow is a typical flow pattern in gas-liquid two-phase flow, which has an important impact on industrial production. In this paper, combining laser scanning and high-speed photography, three-dimensional scanning of dense bubbly flow is carried out in a rectangular water tank. The bubble velocities in the horizontal and vertical directions are determined based on two-dimensional cross-correlation algorithm, and the latter shows a significantly higher velocity. Meanwhile, the variations of both velocities over time present a smooth fluctuation around the average value within a limited range. Besides, the bubble motion trajectories are established, and three-dimensional flow structure of dense bubbly flow is also reconstructed. The void fraction distribution is then investigated in various directions. Comparing the calculation results with the actual results, the relative error of void fraction is 6.58%.

引用

页数：5

共 15 条

[1] Three-dimensional bubble field resolution using synthetic aperture imaging: application to a plunging jet [J].