Volume No. 7 Issue No.: 2 Page No.: 729-737 Oct. - Dec. 2012

 

EFFECT OF WATER INFILTRATION MODELS ON AMOUNT OF GENERATED FLOOD OF LARGE BASIN

 

Saeid Shabanlou* and Ahmad Rajabi

Hydrology and Water Resource, Department of Water Engineering, Kermanshah Branch Islamic Azad University, Kermanshah (IRAN)

 

Received on : July 10, 2012

 

ABSTRACT

 

A comparison was made by means of the hydrologic model, HEC-HMS, which is a software program used to simulate the rainfall-runoff phenomenon. By changing the infiltration models which are as follows: green and ampt , initial/constant, SCS curve no. and deficit/constant separately; the rainfall-runoff as a phenomenon was simulated in the basin of the Golestan province and the results of this simulation study were compared to each infiltration model. Therefore, it was indicated that the simulated runoff hydrograph with the deficit/constant model in comparison to the rest of the models has got a better conformity to the observe hydrograph and right after that successively the initial/constant , the Green and Ampt and the SCS curve no are in the next grades.

 

Keywords : Infiltration Models, Green and Ampt, Initial/constant, SCS curve no., Deficit/Constant

 

 

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