ABSTRACT
Hyperconcentrated density current happens quite often in reservoirs located in loess plateau. When a hyperconcentrated density current reaches the dam and if the sluicing discharge is less than that of the incoming flow, the turbid water will accumulate there and a turbid water subreservoir will be formed in front of the dam. Once a hyperconcentrated density current reaches the dam and the sluicing discharge is less than the incoming discharge, turbid water is accumulated in front of the dam and a subreservoir consisting of turbid water is formed underneath the clear water. The velocity of a hyperconcentrated density current in river usually is higher than 0.7 m/s, with a maximum of 1.4 m/s. The lower layer of a hyperconcentrated density current in river flows in the same direction as the upper layer does. Compared with that of an open channel flow, the inclination of the interface of a hyperconcentrated density current is more obvious.
