Hydrodynamic analysis for high-head leaf gates

Abstract

A one-dimensional analysis of the flow controlled by a high-head gate and of the hydraulic downpull acting on it is presented. The most significant of the flow parameters involved, and a nondimensional term, which describes in a complete manner the effect of boundary geometry on the downpull, are evaluated from systematic air-tunnel experiments. The analysis is used as a basis for the presentation of generalized design information. Although it is applied only to the leaf-type gate in this paper, the analysis should prove adaptable also to other types of closure devices for high heads.