Vortex-model-based Multi-objective Optimization of Winglets for Wind Turbines using Machine Learning

In order to reduce the levelised cost of energy, the rotors of wind turbines are increasing in size. To increase the energy yield, wind turbine rotors need to have an innovative tip design; such as winglets. Winglets are used widely in aircraft design; however, they remain mostly absent in state-of-the-art wind turbine design. The low-fidelity...

Numerical modelling of the migration direction of offshore sand waves using Delft3D: Including underlying seabed topography

The growth of the offshore wind industry results in intensive usage of the sandy seabed in the North Sea, currently and in the coming decades. Large-scale bed forms are present in shallow seas with sandy beds such as the North Sea. The most dynamic bed forms are sand waves. Due to their dynamic behaviour, sand waves can interact within offshore...

Three-dimensional dynamic modelling of earthquake tremors: Memoirs of the Centre of Engineering Geology in the Netherlands, No. 200

In this research a three-dimensional dynamic elasto-plastic finite element model is developed to simulate earthquake response for a three-dimensional irregular topography in the city of Armenia, Colombia. Topographical and geomorphologic effects may be the cause for high local accelerations during the earthquake of January 1999. This effect has...