ORCID
- Borthwick, Alistair: 0000-0001-6053-7764
Abstract
This paper considers two methods for determining the local wave particle kinematics and hydrodynamic forces on an idealised wind turbine monopile in the southern North Sea using sea-state data from Teesside Offshore Wind Farm. An assessment of local flow hydrodynamics is important with regard to safe access of personnel from a crew transfer vessel to a monopile. The hydrodynamic behaviour was calculated using an analytical solution from linear diffraction theory and numerical predictions using OpenFoam, with both slip and no-slip cylinder boundary conditions. Provided the underlying sea state is unidirectional, it was found that close agreement is obtained between analytical and numerical spectra derived from the time series of local free surface elevation, water particle velocity components and in-line wave force loading on the monopile. Less satisfactory agreement is achieved with sea states possessing a bimodal spectrum, which suggests that bimodal spectra may not be unidirectional.
DOI
10.1680/jmaen.2018.16
Publication Date
2018-06-01
Publication Title
Proceedings of the Institution of Civil Engineers - Maritime Engineering
Volume
171
Issue
2
ISSN
1741-7597
Organisational Unit
School of Engineering, Computing and Mathematics
First Page
70
Last Page
85
Recommended Citation
Edesess, A. J., Kelliher, D., Borthwick, A., & Thomas, G. (2018) 'Offshore monopile in the southern North Sea: part II, simulated hydrodynamics and loading', Proceedings of the Institution of Civil Engineers - Maritime Engineering, 171(2), pp. 70-85. Available at: https://doi.org/10.1680/jmaen.2018.16
