Acta Metrologica Sinica  2020, Vol. 41 Issue (4): 430-433    DOI: 10.3969/j.issn.1000-1158.2020.04.007
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Research on Method of Measuring Pulsating Flowrate with Differential Pressure Flowmeter
ZHANG Yong-sheng, ZHANG Yi-zhi, LIU Yan-jun
Changcheng Institute of Metrology & Measurement, Beijing 100095, China
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Abstract  Based on the theoretical model of differential pressure flowmeter under the condition of pulsating flow, the algorithm of calculating instantaneous pulsating flow by double-channel differential pressure is given. The flow field in Venturi tube is simulated by FLUENT software, and then the calculation method of pulsating flow is verified. The simulation results show that the maximum error can be up to 100% when calculating the fluctuating flow by single-channel pressure, and the maximum error can be reduced to about 5% when calculating the fluctuating flow by double-channel differential pressure.
Key wordsmetrology      pulsating flow      simulation      double-channel differential pressure flowmeter     
Received: 09 September 2019     
PACS:  TB937  
Corresponding Authors: Email:zhangyongsheng304@163.com     E-mail: zhangyongsheng304@163.com
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ZHANG Yong-sheng
ZHANG Yi-zhi
LIU Yan-jun
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ZHANG Yong-sheng,ZHANG Yi-zhi,LIU Yan-jun. Research on Method of Measuring Pulsating Flowrate with Differential Pressure Flowmeter[J]. Acta Metrologica Sinica, 2020, 41(4): 430-433.
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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2020.04.007     OR     http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2020/V41/I4/430
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