Author(s): A. Parvaresh; S. Kouchakzadeh

Linked Author(s):

Keywords: Hydrodynamic model; FLDWAV; Dam-break; Flood routing; The Karoon River

Abstract: Development of models capable of forecasting flow behavior is of crucial importance to the management of natural waterways. From among the models developed for this purpose, FLDWAV is a comprehensive model based on Preissmann implicit four-point method in the relevant computations. Using the full Saint-Venant equations and also accounting for the boundary conditions and channel geometry, the model simulates an unsteady flow. This paper will first introduce the above-mentioned model followed by its evaluation results from implementation on the Karoon River in Iran. For this purpose, the model was run to compute water surface elevation and discharge hydrographs at specified locations along the river and also to plot peak water surface profile over the whole study range. The observed flood hydrograph was routed using full dynamic wave model, as well as diffusive model, using low flow filter option, negative side flow and compound cross sections. The result indicated that in spite of the uncertainty associated with the available geometric data, the model showed relatively good agreement between computed and observed water surface profiles. Accordingly, the model was found reliable in studying Karoon River training as a important river in Iran with complicated system.

DOI:

Year: 2003