The use of a labyrinth weir in a reservoir flushing system

A novel reservoir flushing system known as the Submerged StraightWeir Closed Conduit (SSWCC) system has been proposed and successfully tested at the Hydraulics Laboratory at Bristol University. This paper presents further work on this flushing system where a new design incorporating a submerged labyrinth weir instead of a submerged straight weir flushing system is studied. The new system called a Submerged Labyrinth Weir Closed Conduit (SLWCC) flushing system consists of a type of submerged labyrinth weir connected to the main dam by closed conduit. Experimental tests were carried out on a physical model of the new proposed system and results were compared to the results obtained from previous experiments carried out on theSSWCCmodel. The performance of the physical model was simulated using SSIIM, a 3-D mathematical modeling package that is widely used in reservoir modelling.