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Su-6 Well Obtaining Industrial Gas Flow of More Than 1 Million Cubic Meters
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《China Oil & Gas》 CAS 2000年第3期30-32,共3页
关键词 flow Su-6 Well Obtaining Industrial gas flow of More Than 1 Million Cubic meters OO
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CFD-Aided Investigation of Combined Flow Conditioners for Gas Ultrasonic Flow Meter
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作者 袁亚琦 李世阳 +1 位作者 郑佳 李明睿 《Journal of Shanghai Jiaotong university(Science)》 EI 2023年第5期611-620,共10页
Stable and fully developed gas flow field is crucial for realizing accurate measurement of gas ultrasonicflow meter. To reduce the flow field distortion, a flow conditioner is usually used. However, the traditionalmon... Stable and fully developed gas flow field is crucial for realizing accurate measurement of gas ultrasonicflow meter. To reduce the flow field distortion, a flow conditioner is usually used. However, the traditionalmonotype flow conditioner can only improve the flow field distribution partly. The measurement accuracy of thetransit time ultrasonic flow meter is still affected because of its serious flow field distortion in the complex pipelineconditions. In this paper, to further improve the flow field distribution, a combined conditioner is investigated.The combined flow conditioner is composed of fan-shaped section, turbulent mixing cavity, and honeycomb-shapedsection. The effects of fan blade angle and cavity length on the flow field of the DN50 flow meter are studied usingcomputational fluid dynamics (CFD) simulation. Simulation results indicate that compared with the monotypeconditioner, the combined conditioner has better performance on effectively reducing the swirl and turbulence andproviding more stable and repetitive velocity profiles. Experiments also validate the effectiveness of the combinedconditioner. The flow meter with the combined conditioner has better repeatability of less than 0.2%, which isbetter than those of the monotype conditioners under the same conditions. This work is very useful for accuratemeasurement of gas ultrasonic flow meter, especially for the complex pipeline conditions. 展开更多
关键词 computational fluid dynamics(CFD) flow conditioners gas ultrasonic flow meter SWIRL TURBULENCE
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