IBER

Iber is a numerical model for simulating unsteady flows with a turbulent free surface and environmental processes in river hydraulics. The varying applications of Iber includes river hydrodynamics, dam-break simulations, flood zone evaluations, sediment transport calculations and wave flows in estuaries.

At this moment, Iber has 3 main computational modules: a hydrodynamic module, a turbulence module and a sediment transport module. All operate within a finite volume non-structured mesh consisting of triangular or quadrilateral elements. The hydrodynamic module, which constitutes the base of Iber, solves the depth averaged two-dimensional shallow water equations(2D Saint-Venant Equations). The turbulence module allows  the incorporation of turbulent tensions in the hydrodynamic calculation, in this way allowing its use for different turbulent models for shallow waters at different degrees of complexity. The most recent version of Iber also includes a parabolic model, a mixing length model and a k-ε model. The sediment transport module solves the bedload and the turbulent suspended load transport equations, based on the sediment mass balance evolution at the bed.

Iber is a free software and can be donwloaded from:

http://www.iberaula.es