Oil-water two-phase flow velocity measurement with continuous wave ultrasound Doppler

被引:44
作者
Dong, Xiaoxiao [1 ]
Tan, Chao [1 ]
Yuan, Ye [1 ]
Dong, Feng [1 ]
机构
[1] Tianjin Univ, Sch Elect Engn & Automat, Tianjin Key Lab Proc Measurement & Control, Tianjin 300072, Peoples R China
基金
中国国家自然科学基金;
关键词
Ultrasound Doppler; Oil-water two-phase flow; Flow velocity profile; Flow velocity measurement; RESOLUTION PROCESSING TECHNIQUES; PROFILE MEASUREMENT; COLORED NOISE; BUBBLY FLOW; LIQUID FLOW; POWER LAWS; PIPE-FLOW; PART II; VELOCIMETRY; METER;
D O I
10.1016/j.ces.2015.05.011
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A flow velocity measurement method based on continuous wave ultrasound Doppler (CWUD) and flow profile modeling is presented. A theoretical model is proposed to relate the overall superficial velocity of oil water two-phase flow with the mean velocity measured in the sensing volume of CWUD, by introducing velocity profile correlation. A CWUD measuring system was built to emit an ultrasonic wave of 1 MHz and collect the frequency shift of the reflected waves. Dynamic experiments were carried out in a horizontal pipe of inner diameter 01 50 mm with the CWUD system. Six flow patterns of horizontal oil-water two-phase flow were observed including both the water continuous flow and the oil continuous flow. According to the results, the average frequency shift in oil-water two-phase flow varies with the flow pattern. The flow velocity correlations are separately established for the oil continuous dispersed flow, water continuous dispersed flow and stratified flow, based on the analysis of flow velocity profile correction. The average relative error of the overall superficial velocity is 3.63% with a maximum relative error of 12.22%. (C) 2015 Elsevier Ltd. All rights reserved,
引用
收藏
页码:155 / 165
页数:11
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