Irrigation sedimentation tanks in the bed of the pumping station inlet channels

The article analyzes the dynamics of channel processes in irrigation pumping station inlet channels. field studies hydraulic and alluvial sediment regimes supply channels stations are analyzed summarized. water flow under conditions extremely high turbidity variability morphometric characteristics presented. which Saint-Venant equations satisfactorily describe flows bed given. Saint-Venant's twodimensional were numerically implemented using an explicit finite-difference scheme. In addition, results calculations According to numerical studies, width sedimentation tank was taken be equal design channel, speed it 0.25 m/s. length tank, ensuring retention sediments finest fraction (0.05 mm diameter), 1042 m. siltation time can reduced by 15…20% amount about 15 months, considering unevenness velocity distribution diagram horizontal plane trapezoidal crosssection clarifier. Nevertheless, arrangement two parallel chambers tanks makes possible stable for a sufficiently long time.