DRIFTING PROPERTIES OF FLOAT IN OPEN-CHANNEL FLOW WITH WIND-INDUCED FLOW

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  • 風を伴う開水路流れにおける浮子の流下特性

Abstract

<p> Wind influences hydrodynamics in rivers. Therefore, it is necessary to consider such wind effects when we estimate the depth-averaged velocity and the river discharge from the float velocity. However, in practice, the river discharge is generally estimated by using the calibration of the float without considering wind effects, and the accuracy of estimated discharge is questionable. In this study, we measured the water flow velocity using 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 coefficient in wind-induced flows.</p>

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