MSc graduation Ype AttemaDecember 2014
Svašek Hydraulics MSc graduation student Ype Attema had his defence on the topic “Long-term bio-geomorphological modelling of the formation and succession of salt marshes”.
The interaction between vegetation and the morphodynamics is considered to be an important process in salt marsh formation and succession. Therefore, the contribution of vegetation modelling on the long-term morphological development of salt marshes is assessed by implementing a vegetation growth model in the morphodynamic modelling software FINEL2D. In general the results show that the bio-geomorphological models are capable of representing salt marsh characteristic morphological and hydrodynamic phenomena, i.e. overgrown marsh platform dissected by tidal creeks, realistic flow velocities and characteristic erosion/sedimentation patterns.
As per March 2015 Ype will start to work at Svašek Hydraulics.
© Beeldbank Rijkswaterstaat - Joop van Houdt
Tim van Dam winnaar Waterbouwprijs 2014 (HBO)November 2014
Tim van Dam (Hogeschool Rotterdam) wint de Waterbouwprijs 2014 in de categorie HBO. Tim heeft zijn afstudeerwerk, getiteld “Morfologie en Hydronamica in de Beneden-Zeeschelde”, uitgevoerd bij Svašek Hydraulics. Met behulp van FINEL2D heeft hij onderzocht wat de oorzaak is van de opgetreden morfologische en hydrodynamische ontwikkelingen van 1960 tot 2010 in de Beneden-Zeeschelde.
Download afstudeerwerk Tim van Dam.
New frontier in 3D turbulent flow modellingOctober 2014
TUDFlow3d is a fully 3 dimensional numerical flow solver which can give detailed turbulent results on engineering scale. Density currents can be solved, for example warm/cold water outlets, salinity flows, sediment transport.
TUDFlow3d has been applied successfully for sediment plumes from a moving dredging vessel, tailing plumes near the seabed, salinity plume in a crossflow, turbulent channel flow and density currents with and without deposition.
TUDFlow3d is developed by TU Delft and Svašek Hydraulics.
Successful parallelisation of FINEL3DOctober 2014
In May 2014, FINEL3D (the in-house 3D Finite Element model of Svašek Hydraulics) has been successfully parallelised. This has resulted in a significant acceleration of the model and a reduction of the computational time by a factor 5 to 15. A practical limit for the number of elements in 3D model simulations is now enlarged from approximately 200.000 to around one million.
The parallelised version of FINEL3D has been applied recently to a numerical model of the entire Western Scheldt, including a large adjacent part of the North Sea. At this moment a large-scale FINEL3D model of the Dutch river delta, including the Port of Rotterdam, is being built. Parallellised FINEL3D is presently applied as well to detailed short-wave simulations in the Fehmarnbelt (between Denmark and Germany).