engleski

2D numerical simulations of 2012 flood wave passage through HPP system on the River Drava

An extreme flood event on the River Drava in November 2012 was the highest in the last 60 years. It has caused over-spilling of levees and breaching on several levee sections, and consequently produced an extensive flooding of neighbouring settlements and farm fields and property damages in Slovenia and Croatia. This paper shows the results of the hydrological and hydraulic analysis of the flood wave propagation from Austria, through Slovenian hydro power plants to HPP system in Croatia. The hydrological analysis includes the flood flow transformation through the chain of HPPs. The detailed hydraulic analysis was performed on the HPP Varaždin for which a 2D hydrodynamic model has been developed. The model simulations showed the impact of the over-topping and breaching of levees on the extreme flows and flood wave propagation on the HPP Varaždin.

flood wave ; hydraulic analysis ; hydrological analysis ; 2d mathematical model ; River Drava

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