Numerical simulation-based experimental study on theeffect of different disturbed flow components on ultrasonic flowmeter metering performance |
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| WANG Kexu, CHEN Xiyu |
- Abstract:
- Ultrasonic flowmeter is a velocity flowmeter, and its measurement accuracy is greatly affected by the flowfield in the pipeline. In the actual use process, due to the installation conditions are not ideal, the formation ofvortex flow, pulsating flow, asymmetric flow and other non-ideal flow field in the pipe, which in turn affects the accuracy of ultrasonic flowmeter. This study is based on CFD numerical simulation technology, 90° elbow, reducer, upstream and downstream flange diameter difference of one level and other typical disturbanceelements on the impact of the flow field in the pipe, simulate the flow field of the gas in the closed pipe after the disturbance elements, and calculate the resulting error, found that the impact of each disturbance element on the ultrasonic flowmeter measurement error increases with the increase in operating flow. For 90° elbow, the upstream and downstream flange diameter differ by one level, we use these two installation conditions to carry out real flow test, through the test data and simulation results for comparison and analysis, the results are consistent. At the same time, the use of experimental data on the simulation model correction, can guide the construction and transformation of ultrasonic flowmeter metering process, improve the accuracy of the measurement results, and effectively maintain the fairness of the trade handover.
- Keywords:
- Flowmeter; Accuracy; Disturbance elements; Flow field; Numerical simulation; Real flow test
- Download:
- IMEKO-TC9-2019-041.pdf
- DOI:
- 10.21014/tc9-2022.041
- Event details
- IMEKO TC:
- TC9
- Event name:
- FLOMEKO 2022
- Title:
19th International Flow Measurement Conference 2022
- Place:
- Chongqing, CHINA
- Time:
- 01 November 2022 - 04 November 2022