Author(s): Koji Asai, Nobuyuki Kawamoto

Linked Author(s): Koji Asai

Keywords: Lateral overflow, discharge formulation, curved channel, discharge coefficient, radius of curvature

Abstract:

In this study, we investigated the accuracy of the lateral overflow discharge formulations for the curved channel of which the radius of curvature is constant. From the experimental results, we found that the lateral overflow discharges are in proportion to the power of 3/2 to the overflow depth, so we can use the same formulation as Honma formulation for the front overflow discharge. The Froude number, the ratio of the channel width to the lateral weir width, the ratio of the weir height to the weir width, and the ratio of channel width to the radius of curvature, were used as the parameters of the discharge coefficient. We assumed that the discharge coefficient is the simple product of these parameters and having the power. The powers of these parameters were determined from the experimental data. It was confirmed that the accuracy of the proposed formulation is good. (2607, 68, 313)

DOI:

Year: 2017