Experimental study of non-linear wave impact on offshore wind turbine flundations
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.
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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.
|Item Type||Conference or Workshop Items (Paper)|
|Creators||Zang, J., Taylor, P. H., Morgan, G., Tello, M., Grice, J. and Orszaghova, J.|
|Departments||Faculty of Engineering & Design > Architecture & Civil Engineering|
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