The Resulting Effect of Flow Pulsations on Calibration Constant of Acoustic Path in Ultrasonic Flowmeters.
The Resulting Effect of Flow Pulsations on Calibration Constant of Acoustic Path in Ultrasonic Flowmeters.
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DOI：
10.3390/s22072815
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发表时间：
2022-04-06
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影响因子：
--
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中科院分区：
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The present paper compares, for the first time, the regimes of a pulsating turbulent flow in a smooth pipe in terms of 0.001 ≤ ω+ ≤ 0.0346 and 0.16 ≤ β ≤ 0.63 at Re ≈ 7000 with the uncertainty in estimating the flow rate by an ultrasonic flowmeter. It was revealed that the classification of pulsating flow regimes according to the dimensionless angular frequency ω+ does not have a direct relation with the K parameter equal to the ratio of the phase-average calibration constant in pulsating flow to the corresponding value in steady flow. The results of data processing showed that K depends on the relative amplitude of pulsations β and the position of the chord of the ultrasonic beam trajectory (L/R is distance L from the pipe center to the chord to the pipe radius R). In the coordinates β and L/R, there is a rather wide area where the uncertainty in flow rate estimation of pulsating flows should not exceed 0.5%. An increase in β or L/R leads to an increase in measurement uncertainty, which in the limiting case β, L/R → 1 can reach 5% or more. Favorable and unfavorable areas of the pipe section were identified when scanning pulsating flows and the effectiveness of using multi-path scanning schemes was estimated to reduce the resulting effect of flow pulsations on flow measurement uncertainty.
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影响因子：
3.7
作者：
AKHAVAN, R;KAMM, RD;SHAPIRO, AH
通讯作者：
SHAPIRO, AH
影响因子：
3.7
作者：
BRERETON, GJ;REYNOLDS, WC;JAYARAMAN, R
通讯作者：
JAYARAMAN, R
影响因子：
4.6
作者：
BRERETON, GJ;HWANG, JL
通讯作者：
HWANG, JL
影响因子：
2.6
作者：
He, S.;Jackson, J. D.
通讯作者：
Jackson, J. D.
DOI：
10.1243/jmes_jour_1967_009_007_02
发表时间：
1967-01-01
期刊：
JOURNAL OF MECHANICAL ENGINEERING SCIENCE
影响因子：
--
作者：
JEPSON, P
通讯作者：
JEPSON, P