Browsing Publikasjoner fra CRIStin - SINTEF Ocean by Journals "Applied Ocean Research"
Now showing items 1-20 of 20
-
A rational approach to seepage flow effects on bottom friction beneath random waves
(Journal article; Peer reviewed, 2014-08)The bottom friction beneath random waves is predicted taking into account the effect of seepage flow. This is achieved by using wave friction factors for rough turbulent, smooth turbulent and laminar flow valid for regular ... -
Active truncation of slender marine structures: Influence of thecontrol system on Fidelity
(Journal article; Peer reviewed, 2018-05)Performing hydrodynamic model testing of ultra-deep water floating systems at a reasonable scale ischallenging, due to the limited space available in existing laboratories and to the large spatial extent ofthe slender ... -
Comparing generic and vectorial nonlinear manoeuvring models and parameter estimation using optimal truncated least square support vector machine
(Journal article; Peer reviewed, 2020-04)An optimal truncated least square support vector machine (LS-SVM) is proposed for the parameter estimation of nonlinear manoeuvring models based on captive manoeuvring tests. Two classical nonlinear manoeuvring models, ... -
Coupled vessel and moonpool responses in regular and irregular waves
(Journal article; Peer reviewed, 2020-03)Hydrodynamic coupling between the ship and moonpool responses is investigated. Dedicated experiments are carried out in the Ocean Basin at Sintef Ocean. Three different moonpool sizes are studied, where the moonpool length ... -
Dynamic response of a monopile wind turbine in waves: Experimental uncertainty analysis for validation of numerical tools
(Journal article; Peer reviewed, 2019-05-23)The responses of a monopile offshore wind turbine subjected to irregular wave loads are investigated numerically and experimentally, considering a range of sea states. An extensive experimental campaign was carried out on ... -
Empirical estimation of low-frequency nonlinear hydrodynamic loads on moored structures
(Peer reviewed; Journal article, 2021)Low-frequency (LF) motions of floating structures are commonly modeled as the response of an oscillator to a second-order wave excitation. We present here an empirical method that reliably estimates the oscillators parameters ... -
Experimental and numerical investigations of monopile ringing in irregular finite-depth water waves
(Journal article; Peer reviewed, 2017-08-16)In storm conditions, nonlinear wave loads on monopile offshore wind turbines can induce resonantringing-type responses. Efficient, validated methods which capture such events in irregular waves inintermediate or shallow ... -
Experimental study of floating bridge global response when subjected to waves and current
(Journal article; Peer reviewed, 2023)The present paper investigates the wave- and current-induced responses of the Bjørnafjord phase 5 K12 floating bridge concept based on small-scale model tests. Due to the extensive length of the bridge concept combined ... -
A Flexible Fully Nonlinear Potential Flow Model for Wave Propagation over the Complex Topography of the Norwegian Coast
(Peer reviewed; Journal article, 2022)Coastal wave propagation and transformation are complicated due to the significant variations of water depth and irregular coastlines, which are typically present at the Norwegian fjords. A potential flow model provides ... -
A fully nonlinear potential flow wave modelling procedure for simulations of offshore sea states with various wave breaking scenarios
(Peer reviewed; Journal article, 2021)An accurate representation of a given sea state is crucial for the study of hydrodynamic loads on offshore structures. It is straightforward to check the quality of the reproduced regular waves in a numerical wave tank ... -
Hydroelastic response of Froude scaled stiffened steel panels exposed to design-critical wave slamming
(Peer reviewed; Journal article, 2023)Stiffened steel panels of offshore ocean structures may experience violent wave impacts which needs to be accounted for in design. The slamming pressures are often measured in scaled wave tank tests and imposed on finite ... -
Model test of a hydroelastic truncated floating bridge with a stay-cable tower
(Journal article; Peer reviewed, 2023)Experimental studies of long offshore and coastal structures such as very long floating bridges are challenged by the combination of coastal wave environments with relatively small design waves and excessive structural ... -
Model tests of a hydroelastic truncated floating bridge
(Peer reviewed; Journal article, 2022)Literature on tank tests of floating bridges is extremely rare, while a very limited number of publications covering tests of other types of very large floating structures exist. Here, the authors share their experience ... -
Model uncertainty assessment for wave- and current-induced global response of a curved floating pontoon bridge
(Journal article; Peer reviewed, 2020-12)The present paper provides a comparison between the numerical and experimental response for a generic floating pontoon bridge structure, thereby also serving to quantify the inherent uncertainties associated with both types ... -
Response of Atlantic salmon in flexible sea cages to waves and currents: Measurements at farm-level and modeling
(Peer reviewed; Journal article, 2023)The shift towards salmon farming in more exposed locations has been an industry-wide trend for the last decade. Moving fish farms to locations with high water currents and waves can improve production by providing more ... -
Sloshing-induced motions of a spar inside a cylindrical dock with baffles in waves
(Peer reviewed; Journal article, 2023)The motions of a free floating offshore wind turbine’s (OWT) spar-type platform inside a bottom-less moored cylindrical dock are investigated for incident wave frequencies near the first lateral sloshing resonance, focusing ... -
Time domain simulation of marine riser vortex-induced vibrations in three-dimensional currents
(Peer reviewed; Journal article, 2022)One of the major uncertainties related to present Vortex-Induced Vibrations (VIV) prediction practice is related to the simplification of real multi-directional current profiles into equivalent uni-directional ones. This ... -
Truncated least square support vector machine for parameter estimation of a nonlinear manoeuvring model based on PMM tests
(Journal article; Peer reviewed, 2020-04)A new version of least square support vector machine (LS-SVM), the truncated LS-SVM, is proposed to estimate the nondimensionalized hydrodynamic coefficients. Truncated LS-SVM is shown to be an efficient and robust method ... -
Turbulence and flow field alterations inside a fish sea cage and its wake
(Journal article; Peer reviewed, 2020-05)Measurements were performed inside and in the wake of a commercial salmon sea cage. The key instrumentation included the following: sea bottom-mounted acoustic Doppler current profilers providing continuous concurrent flow ... -
An upright bottomless vertical cylinder with baffles floating in waves
(Peer reviewed; Journal article, 2022)Damping of the surge and pitch motions, as well as the first lateral sloshing mode in a rigid free-floating upright circular dock with bilge boxes and open bottom is investigated. Model tests are carried out on a 0.80 m ...