MATHEMATICAL MODEL OF RESERVOIR ROUTING FOR SPILLWAY OF WADI HORAN DAM

This research is to analyses hydraulic parameters of the spillway design for WADI HORAN Dam. The spillway design of type Ogee overflow and the design based on Water Experiment Station (W.E.S) of the U.S. Corp of Engineers. The inflow are routed in order to decrease the maximum discharge passing on the spillway. The maximum discharge passing are 1400 m 3 /sec with maximum head over the crest equal to 3.4 m and 50 m 3 /sec Attenuation and 2 hrs Reservoir Lag. Froude number is determined in order to select the type of stilling basin, the Froude number equal to 5 that can choose type II stilling Basin. The method used for routing is Inflow- Storage Discharge ( I.S.D.) The profile of the downstream and upstream are calculated.