Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10156192 | Ocean Engineering | 2018 | 12 Pages |
Abstract
New measurements from a drillship operating in a swell dominated region are used to demonstrate that generally reliable estimates of the hydrodynamic motions can be obtained from numerically hindcast directional wave spectra. Independent estimates of the directional wave spectra derived from the ship motions using a parametric approach are shown to be in close alignment with the hindcast spectra. Deviations between predictions and observations in this methodology are largely explained through the idealised nature of the hindcast spectra and limitations in the ability of the numerical model to capture swell arrival over the long fetch on approach to the project site, which is demonstrated through comparison of observed and modelled spectra. In general, the study provides encouraging support for the application of numerical hindcast techniques for vessel motion assessments, particularly for sites for which wave buoy measurements are not available.
Related Topics
Physical Sciences and Engineering
Engineering
Ocean Engineering
Authors
I.A. Milne, M. Zed,