A SEMI CIRCULAR FLOW METER FOR SMALL IRRIGATION CHANNELS

摘要

A semi circular width flow meter has been proposed for discharge measurement in irrigation channels. It is a very simple device, which is not only easy to construct, accurate, operate but maintenance free as well. There is no chance of trapping of floating materials inside the proposed device during its use. The rate of flow can be estimated with accuracy under free flow conditions up to a submergence limit of 80-85%. The device can find applications for discharge measurement in irrigation channels of rectangular shape.