Author(s): Shun Kaneko; Michio Sanjou; Takaaki Okamoto

Linked Author(s):

Keywords: Wind-induced flow; Correction factor of drifting float; Discharge measurement

Abstract: Wind influences significantly hydrodynamics in rivers. Therefore, it is necessary to consider such wind effects when we estimate the depth-averaged velocity and the river discharge by the float velocity. However, the river discharge is generally estimated by using the calibration of the float without considering wind effects, and thus, accuracy of estimated discharge is questionable. This study measured the water flow velocity with the drift speed of the float in wind-effected flows, and then this result was compared with PIV data. Based on these experiments, we revealed the influence of wind on the float velocity and evaluated the correction factor reasonably in wind-induced flows.

DOI: https://doi.org/10.64697/978-90-835589-7-4_41WC-P1651-cd

Year: 2025