Determination of the hydrodynamic load on bottom axial flap gates

Abstract

     Flap gates are widely used in Vietnam in building tidal sluices for water control, saltwater prevention and flood drainage. In Ho Chi Minh City Flap gates have been installed in locations to protect land and people from tidal flood. However, there is no formula available for determinationg hydrodynamic pressure on the gates. This study shows how to determine the hydrodynamic pressure on the gates during closing operation by mathematical model (Flow-3D) combined with the site monitoring data. The research results can be used for flap gate design calculations and selection of the operating equipments.