Rectangular top-hinged plate as portable flow measuring device

نویسندگان

چکیده

Abstract Most previous studies have focused on adjustable complex flap gates and little research has been carried out simple inline top-hinged plates for flow measurement. The present study investigates discharge measurement by located along channels under free condition. proposed device is a portable one. Two models are based Buckingham's theorem of dimensional analysis. first model (Model I) considers deflection angle as an independent variable while the second II) it dependent variable. A series laboratory experiments (687 runs) were performed to calibrate models. results showed that when slope channel increases, accuracy slightly decreases. average error 2.32%, 3.19%, thus through rectangular with longitudinal slopes in range [0, 0.005] can be accurately estimated using Based this experimental study, plate length enhances performance mass unknown. offers reliable approach both horizontal sloping channels.

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ژورنال

عنوان ژورنال: Water Science & Technology: Water Supply

سال: 2022

ISSN: ['1606-9749', '1607-0798']

DOI: https://doi.org/10.2166/ws.2022.400