Print Email Facebook Twitter Gravity Based Foundation: Scour and design optimisation Title Gravity Based Foundation: Scour and design optimisation Author Van Eijk, T.F.A. Contributor Jonkman, S.N. (mentor) Labeur, R.J. (mentor) Molenaar, W.F. (mentor) Van Stralen, J.M. (mentor) Yuan, J. (mentor) Faculty Civil Engineering and Geosciences Department Hydraulic Engineering Programme Hydraulic Engineering and Water Resources Management (TU Delft-NUS double degree programme) Date 2016-01-06 Abstract Within Royal HaskoningDHV an innovative concept is thought to be feasible as a new foundation for larger wind turbines in deeper waters. In this thesis the development of this innovative offshore wind turbine foundation was aided. The research focused on two topics: - Scour at this gravity based foundations. - Possible design optimisations with respect to shape and dimensions of the structure. A numerical tool was developed that is able to calculate the hydrodynamic loads on multiple configurations of this foundation. This tool uses Stokes 5th order wave theory and Morison’s equation. It was extended with analytical geotechnical stability calculations, to compare the stability of different foundations. Furthermore, a literature study was conducted to determine whether or not scour protection should be applied at the foundation concepts. It was concluded that no accurate scour depth could be predicted with the currently available methods. Therefore a computational fluid dynamics model, FinLab, was employed to determine the relative scour potential at the foundation. Moreover, a new numerical scour depth prediction method is proposed in this thesis, which is especially suitable for unconventional foundation structures. Subject scourGBSGravity Based Structureoffshore wind turbinehydrodynamic loadsbed shear stress amplificationFinLab To reference this document use: http://resolver.tudelft.nl/uuid:515d1962-a501-4d55-8140-a704af30ede8 Part of collection Student theses Document type master thesis Rights (c) 2016 Van Eijk, T.F.A. Files PDF MSc_Thesis_-_Tom_van_Eijk ... ersion.pdf 27.51 MB Close viewer /islandora/object/uuid:515d1962-a501-4d55-8140-a704af30ede8/datastream/OBJ/view