Hydraulic Characteristics Radial-Gate on Variable Vertical Curvature Conduit

The flow over the bed with vertical curvature is influenced by the centrifugal force due to the curvature of streamline and streamline profiles influence considerably the discharge, the bed pressure and so on. The accurate determination of the flow will require futher knowledge of the streamline profile. In this paper we deal with the flow in open channel with variable vertical curvature bed at downstream of radial gate. This flow is typical problem to give the verification of numerical method based on simple theory related to the characteristics of streamline, so that the direction of radius of curvature in a cross section are reversed. The assumption on the characteristics of streamline such as the radius of curvature and the inclination are proved by experiments on the discharge, the bed pressure and so on.