Assessment of Parshall flumes for discharge measurement of open-channel flows: A comparative numerical and field case study
- Title
- Assessment of Parshall flumes for discharge measurement of open-channel flows: A comparative numerical and field case study
- Author
- 강석구
- Keywords
- Parshall flume; Flow discharge; Large-eddy simulation; Level set method; Dye dilution experiment
- Issue Date
- 2021-01
- Publisher
- ELSEVIER SCI LTD
- Citation
- MEASUREMENT, v. 167, article no. 108292
- Abstract
- This paper presents a series of numerical and field studies to examine the accuracy of two field-scale Parshall flumes, which are employed to measure the flow rate of a wastewater system in the city of Minneapolis, Minnesota. The numerical studies were carried out using the large-eddy simulation (LES) and level-set methods to compute the turbulent flow of sewers under two-phase flow (wastewater and air) conditions. Flow rate measurements in the field were conducted using the dye dilution approach and an in-site flow measuring tool. Using the combination of field measurements and numerical simulations, this research aims at quantifying (i) the margin of error of the filed-scale Parshall flumes and (ii) the water surface fluctuations within the Parshall flumes. The LES turbulent model, coupled with the level-set method, allowed for resolution of instantaneous water surface variations and uncertainty quantification of the flow rate measurements.
- URI
- https://www.sciencedirect.com/science/article/pii/S0263224120308320?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/175578
- ISSN
- 0263-2241; 1873-412X
- DOI
- 10.1016/j.measurement.2020.108292
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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