Generalized Discharge Relations for Cutthroat Flumes

A group of Cutthroat flumes was rated under both free flow and submerged flow conditions. Generalized discharge rating curves can be developed due to the simplicity of the structure and the geometric similarity between flume sizes. Twelve flumes were used in this study, including three flume lengths of 1.5 ft (0.45 m), 3 ft (0.90 m), and 4.5 ft (1.35 m), with four different throat widths for each length. In addition, the flume sizes were selected so as to permit correlation with the initial Cutthroat flume studies, wherein a flume length of 9 ft. (2.7 m), and throat widths varying from 1 ft (0.3 m) to 6 ft (1.8 m), were studied.