... Abstract In an attempt to develop a forecast model for surfing waves, the fully nonlinear potential flow code REEF3D::FNPF is applied in the Ericeira World Surfing Reserve. Open-source bathymetry datasets, available in EMODNet, are used to define the domain. After a grid refinement study...

... are generated by TurbSim and imported into OrcaFlex. The simulations account for various environmental conditions which include individual and combined wind, waves, and current. Response statistics are summarized to study the impact of individual environmental component on the system responses. Furthermore...

... Abstract This paper presents the results of an experimental study of seabed liquefaction under progressive waves. Firstly, during preliminary tests, the physical and mechanical parameters of the soil selected as the subgrade material were determined. A series of monotonic triaxial shear tests...

... Abstract The single wave or uni-modal wave analysis approach to define the installation seastates, based on a single wave with varying directions, wave heights and periods, is a standard approach among the installation contractors. However, in many of the offshore projects, e.g. offshore...

...VARIABILITY IN ENCOUNTERED WAVES DURING DETERMINISTICALLY REPEATED SEAKEEPING TESTS AT FORWARD SPEED Sanne van Essen Maritime Research Institute Netherlands (MARIN) Wageningen, The Netherlands ABSTRACT Numerical seakeeping codes for ships at forward speed in waves are often validated or tuned based...

... Abstract Tropical cyclones are highly variable and, in many areas of the world, are the main cause of extreme wind and associated waves, surge and current conditions. At a given location, cyclones that cause a significant impact are relatively rare but severe events, which means that the number...

... Abstract An analysis of the wind and wave climate of the Southern Ocean is provided based on a combination of more than 30-years of satellite altimeter data plus insitu buoy measurements at 5 locations in the Southern Ocean. The analysis shows that the Southern Ocean is a unique environment...

... between them implicitly. However, there are a number of challenges in its application. Firstly, the loading on a pipeline is dependent on the previous wave cycle, and hence, the drag and inertia coefficients vary within a sea-state. Secondly, along many pipeline routes the waves are depth limited...

... (swell) or bimodal (wind-sea) wave spreading function is adopted together with the spectral form which best fits the frequency spectrum. This paper describes the new method and presents the results on a measured dataset. 27 07 2009 frequency-direction spectra waves wave spreading...

... 22 05 2009 In order to validate the numerical prediction of two-ship interactions in waves, the model test calibration has to be conducted. However, motion constraints are usually applied when model tests are carried out for the measurement of wave excitation forces and moments...

... 04 03 2009 The probability distribution of the duration of events where the wave height or other metocean parameter X ( t ) is under or over a specified level X = u is of great importance for the planning of offshore engineering operations. The mean duration , estimated by adding...

... 04 03 2009 Pile foundations supporting offshore platforms and marine structures are required to resist dynamic lateral loading due to wind and wave forces. The response of a jacket offshore tower is affected by the foundation flexibility and the nonlinear behaviour of the supporting...

... 04 03 2009 This paper examines the behaviour in ocean waves of floating structures that incorporate open-bottom tanks on their submerged hull geometry. These tanks contain water columns that can flow in or out through their open bottoms, and may also include a volume of trapped air...

... 09 01 2009 A study on dynamics of a vertical production riser under environmental loads is carried out. Current and wave loads along the riser, and surface vessel motions due to the environment at the riser top are taken into account. Based on descriptions of fundamentals of the Quasi...

... 400-233 Wes North Vancouver, B.C. Proceedings of OMAE04 23rd International Conference on Offshore Mechanics and Arctic Engineering June 20-25, 2004, Vancouver, British Columbia, Canada 1 Copyright © 2004 by ASME Keywords: icebergs, waves, collision forces, load combination factors, ocean...

... Landslide waves landslide-generated waves A time-domain boundary element method is developed to simulate linear waves generated by a wave paddle or a horizontal-moving landslide of an arbitrary profile. In this approach, a time-integration procedure is used to apply the boundary...

..., British Columbia, Canada OM AE2004-516341 Copyright © 2004 by ASME Keywords: rare events, probabilities, waves, wind ABSTRACT Historical methods are typically used to determine the 100-year seastates used in traditional design practice. In these methods, one fits a probability distribution...

... 05 01 2009 In this paper a methodology for assessing the accuracy of full directional wave spectra produced by wind-wave models is presented and tested. This methodology includes graphical and parametric comparisons of model directional spectra against data obtained from directional...