Since more than 25 years Svašek Hydraulics works on the development of hydrodynamic models. The main set of in-house developed hydrodynamic models is based on the Finite Element Method.
The main items of the total package are the hydrodynamic flow models FINEL2D, FINEL3D (resp. 2- and 3-dimensional) and the harbour resonance model HARES. Within FINEL2D, the MORFIN morphological modules are available to compute sediment transport and seabed development, both for sand and silt. MORFIN is also dynamically linked to the wave model SWAN.
Typical for the finite element method is that the model area is divided into a number of triangles, the so-called elements. The size and shape of these elements may vary within the model area, allowing flexible schematisations. Characteristic features of a specific region, like tidal channels and flats, the geometry of harbour moles and basins and the configuration of the shore line can easily be incorporated in the model. In the area of interest smaller element sizes can be applied. Hence, complicated nesting techniques are not required in this approach.
Being part of the same package the results of the various modules can easily be exchanged, e.g. changes in seabed level computed with MORFIN are directly linked to the hydrodynamic model.
Our models are continuously subject to research and development. If required, we will adjust the model to suit specific questions, instead of having to simplify the problem to fit it to an existing model.
Besides the in-house developed software, Svašek Hydraulics applies software packages developed by other parties. For a detailed model descrition and some applications of the software packages, select a model from the list below.
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FINEL 2D
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FINEL 2D is a two-dimensional model for the computation of shallow water flow, refraction of short waves, and
sediment transport processes in inland and coastal waters.
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FINEL 3D
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FINEL 3D is a fully 3-dimensional flow model, based on the complete Navier-Stokes equations. No assumptions are
made with respect to the vertical pressure distribution, hence the model is especially suited to compute currents
which vary strongly in both horizontal and vertical directions. FINEL 3D is able to compute 3-dimensional density
currents resulting from salinity and cold/warm water interactions.
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MORFIN
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MORFIN is the name of the morphological modules for sand and silt transport within FINEL. Results of the
wave model SWAN (shear stresses due to waves) can be included.
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HARES
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HARES calculates the wave penetration in harbours and is especially useful in harbour and breakwater
optimisation studies. The model includes the effects of diffraction, refraction and reflection.
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SPH
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SPH (Smoothed Particle Hydrodynamics) is a Lagrangian particle flow model used to calculate non hydrostatic flows. Wave overtopping, violent interaction between flow and structures can be captured in great detail.
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WAQUA*
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WAQUA is a water movement and water quality simulation system, able to perform two- and three-dimensional computations.
It is used for hydrodynamic and water quality simulation of well mixed estuaries, coastal seas and rivers.
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SWAN*
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SWAN is a numerical wave model to obtain realistic estimates of wave parameters in coastal areas, lakes and
estuaries from given wind-, bottom-, and current conditions.
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SOBEK*
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SOBEK is a 1D hydraulic numerical model. The program carries out one-dimensional hydraulic calculations of an area that is schematised by a network of open water channels.
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Worldwavedata
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Svašek Hydraulics provides free wave forecasts for the next 7 days almost all over the world. Forecasts are based on the global NOAA (USA - National Oceanic and Atmospheric Administration) wave model.
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