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Experimental study of non-linear wave impact on offshore wind turbine flundations


Reference:

Zang, J., Taylor, P. H., Morgan, G., Tello, M., Grice, J. and Orszaghova, J., 2010. Experimental study of non-linear wave impact on offshore wind turbine flundations. In: Coastlab10 – 3rd International Conference on the Application of Physical Modelling to Port and Coastal Protection, 2010-09-28 - 2010-10-01, Barcelona.

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Abstract

A novel analysis method is proposed for the fluid loading on a surface piercing cylinder in steep waves. This is based on experiments using compact focussed wave groups where phase can be explicitly controlled. By combining measured force time histories for a steep wave group and that from the same wave group but inverted, the complete harmonic structure of the total hydrodynamic loading can be extracted. The 2nd-5th harmonic load components scale with the appropriate power of the envelope of the linear force component in both time variation and amplitude. This justifies the use of a Stokes-like decomposition of hydrodynamic load comparable to the classical treatment of undisturbed free wave elevation.

Details

Item Type Conference or Workshop Items (Paper)
CreatorsZang, J., Taylor, P. H., Morgan, G., Tello, M., Grice, J. and Orszaghova, J.
DepartmentsFaculty of Engineering & Design > Architecture & Civil Engineering
RefereedYes
StatusPublished
ID Code32188

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