Contribution to the Development of a Method of Estimate Of The Time Of Concentration of the Maximum Flows of the Rain

Abstract

Among the characteristics that determine the maximum throughput flood genesis, concentration time has an important place. The maximum phase shift of a flood rain  is subjected to different types of river regulation. This is caused by the friction forces in the  river bed, by the gradual change of the wetted area by the slope  and also by the flow exchanges. The flood speed is proportional to the water level in the river bed or the corresponding flow.

Keywords: Flood, maximum, concentration speed.