A Method Combining Measurement Tool and Numerical Simulation for Calculating Acoustic Signals of Ultrasonic Flowmeter

Zhao, Nannan; Hu, Liang; Peng, Xiangxiang; Fang, Zehua; Chen, Wenyu; Fu, Xin

doi:10.1109/jsen.2019.2937795

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…Boundary conditions involved in the model include the acoustic-structure interface at the inner wall, the free boundary at the outer wall and velocity input at the excitation region. The boundary conditions were described by equations (Cheeke, 2017; Sato et al , 2006; Zhao et al , 2019) listed in Table 2.…”

Section: Simulationmentioning

confidence: 99%

“…Among which dist( r ) and phi( r ) describe the radial distribution of velocity and phase on the surface of PZT, respectively. The functions are interpolated from experimental data based on a laser vibrometer (Zhao et al , 2019). The other function env( t ) describes the envelope of the excitation signal; it is denoted using the following exponential model (Sabatini, 1997): Where the parameters A , T and m are set to 8.042, 1.408 and 4.2, respectively, for variable t denoted in the unit of μs .…”

Section: Simulationmentioning

confidence: 99%

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Investigation on the influence of wall thickness on the reception signal in a PFA-made ultrasonic flow sensor

Hu,

Liu,

et al. 2024

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Purpose In a coaxial ultrasonic flow sensor (UFS), wall thickness is a vital parameter of the measurement tube, especially those with small inner diameters. The paper aims to investigate the influence of wall thickness on the transient signal characteristics in an UFS. Design/methodology/approach First, the problem was researched experimentally using a series of measurement tubes with different wall thicknesses. Second, a finite element method–based model in the time domain was established to validate the experimental results and further discussion. Finally, the plane wave assumption and oblique incident theory were used to analyze the wave propagation in the tube, and an idea of wave packet superposition was proposed to reveal the mechanism of the influence of wall thickness. Findings Both experimental and simulated results showed that the signal amplitude decreased periodically as the wall thickness increased, and the corresponding waveform varied dramatically. Based on the analysis of wave propagation in the measurement tube, a formula concerning the phase difference between wave packets was derived to characterize the signal variation. Originality/value This paper provides a new and explicit explanation of the influence of wall thickness on the transient signal in a co-axial UFS. Both experimental and simulated results were presented, and the mechanism was clearly described.

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Section: Simulationmentioning

confidence: 99%

Section: Simulationmentioning

confidence: 99%

Investigation on the influence of wall thickness on the reception signal in a PFA-made ultrasonic flow sensor

Hu,

Liu,

et al. 2024

Self Cite

View full text Add to dashboard Cite

show abstract

“…At present, there are three kinds of gas flowmeters, which are turbine, roots, and ultrasonic flowmeters. Compared with the first two flow meters, ultrasonic gas flow meters have obvious advantages in the natural gas trade measurement system due to the lack of built-in flow resistance, low-pressure loss, and high range ratio [3][4] . However, the measurement accuracy is greatly affected by the flow field distribution, the roughness of the pipeline, the structure of the upstream choke, and the degree of fluid turbulence will cause uneven velocity distribution on the channel line of the flowmeter, resulting in errors 5 .…”

Section: Introductionmentioning

confidence: 99%

Optimize the Rectifier Structure to Improve the Accuracy of Gas Ultrasonic Flowmeter Under Low Flow Conditions

Yang

Zhang²,

Shi³

et al. 2023

J. Phys.: Conf. Ser.

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With the promotion of the coal-to-gas policy, the consumption of civil natural gas in China is increasing rapidly. Improving the measurement accuracy of the flowmeter is of great significance in reducing transportation costs. Computational fluid dynamics software (FLUENT) was used for simulation, the upstream choke model of a single elbow pipe was established, and the flow field in the urban pipe network’s transition area was analyzed and optimized to improve the existing commercial flow Conditioner. The effects of the Reynolds number, the installation location of the ultrasonic gas flowmeter, and aperture depth on measurement accuracy were investigated. The results show that installing the flow Conditioner can improve the velocity distribution of the flow field in the pipeline. Optimizing the flow Conditioner can shorten the installation position of the flowmeter. The optimum thickness of the flow Conditioner is 0.25D. The research results provide important theoretical significance and application value for improving the industry’s ultrasonic gas flowmeter measurement accuracy.

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Signal processing method of ultrasonic gas flowmeter based on transit-time mathematical characteristics

Zhou,

Wang,

Wang

et al. 2025

Measurement

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A Method Combining Measurement Tool and Numerical Simulation for Calculating Acoustic Signals of Ultrasonic Flowmeter

Cited by 4 publications

References 23 publications

Investigation on the influence of wall thickness on the reception signal in a PFA-made ultrasonic flow sensor

Investigation on the influence of wall thickness on the reception signal in a PFA-made ultrasonic flow sensor

Optimize the Rectifier Structure to Improve the Accuracy of Gas Ultrasonic Flowmeter Under Low Flow Conditions

Signal processing method of ultrasonic gas flowmeter based on transit-time mathematical characteristics

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