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http://dx.doi.org/10.3795/KSME-B.2013.37.11.1037

Correlation Analysis of Flow Characteristics Downstream of a Double Bent Pipe and Mounting Positions of Ultrasonic Flowmeter  

Lee, Dong Keun (K-water Institute, Korea Water Resources Corporation)
Cho, Yong (K-water Institute, Korea Water Resources Corporation)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.37, no.11, 2013 , pp. 1037-1046 More about this Journal
Abstract
In this study, the establishment of the criteria for accurate measurement is investigated via a statistical analysis of experimental results. The magnitude of influence on measurement errors is severely affected by the number of paths, mounting angle of sensor, straight pipe length in sequence, and Reynolds number. Three-dimensional numerical analysis has been conducted to understand the flow patterns downstream of a double bent pipe. Numerical analysis shows that the results well agreed with the experimental ones in case of a sensor mounting angle of $0^{\circ}$ and L/D = 3, 5 of $45^{\circ}$, $135^{\circ}$ in a single path. As a result, when the Reynolds number is 700,000-1,400,000, the sensor error of a single-path ultrasonic flowmeter is reduced with the mounting condition of L/D = 3, $45^{\circ}$.
Keywords
Double Bent Pipe; Ultrasonic Flowmeter; Correlation; Secondary Flow; Regression Analysis; Numerical Analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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