Browsing NTNU Open by Author "Thys, Maxime"
Now showing items 1-13 of 13
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Dynamic response of a monopile wind turbine in waves: Experimental uncertainty analysis for validation of numerical tools
Bachynski, Erin Elizabeth; Thys, Maxime; Delhaye, Virgile Roger (Journal article; Peer reviewed, 2019)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 ... -
Experimental and numerical investigations of monopile ringing in irregular finite-depth water waves
Bachynski, Erin Elizabeth; Kristiansen, Trygve; Thys, Maxime (Journal article; Peer reviewed, 2017)In storm conditions, nonlinear wave loads on monopile offshore wind turbines can induce resonant ringing-type responses. Efficient, validated methods which capture such events in irregular waves in intermediate or shallow ... -
Experimental study on the effect of second order wavemaker theory on the response of a flexible large diameter monopile in irregular sea
Hoseini Dadmarzi, Fatemeh; Tonnel, Matthias; Thys, Maxime; Bachynski-Polic, Erin Elizabeth; Kristiansen, Trygve (Peer reviewed; Journal article, 2021)Motivated by the need for larger offshore wind turbines, large diameter monopile foundations are being developed. To ensure safe design, there is a need for model testing and validation of hydrodynamic load models. Scaled ... -
Multiple-degree-of-freedom actuation of rotor loads in model testing of floating wind turbines using cable-driven parallel robots
Chabaud, Valentin Bruno; Eliassen, Lene; Thys, Maxime; Sauder, Thomas Michel (Journal article; Peer reviewed, 2018)Model testing of offshore structures in ocean basins has been accepted as a necessary step for the validation and calibration of numerical models, as well as for final design checks in extreme environments. While offshore ... -
Numerical simulation and comparison with experiments of a floating wind turbine using a direct forcing method
Berthelsen, Petter Andreas; Thys, Maxime; Kamath, Arun Mulky; Martin, Tobias; Bihs, Hans Sebastian (Chapter, 2022)The open-source Computational Fluid Dynamic (CFD) code REEF3D is used to simulate the hydrodynamic loads and motion response of a floating wind turbine substructure, the INO WINDMOOR semisubmersible floating wind turbine. ... -
Observations from hydrodynamic testing of a flexible, large-diameter monopile in irregular waves
Bachynski, Erin Elizabeth; Thys, Maxime; Hoseini Dadmarzi, Fatemeh (Peer reviewed; Journal article, 2020)As the offshore wind industry moves toward larger wind turbines and deeper water, wave-induced loads on large-diameter monopiles are of increasing importance for ultimate limit state design checks. The combination of a ... -
Real-time hybrid model testing of a braceless semi-submersible wind turbine. Part I: The hybrid approach
Sauder, Thomas Michel; Chabaud, Valentin Bruno; Thys, Maxime; Bachynski, Erin Elizabeth; Sæther, Lars Ove (Chapter; Peer reviewed, 2016)This article presents a method for performing Real-Time Hybrid Model testing (ReaTHM testing) of a floating wind turbine (FWT). The advantage of this method compared to the physical modelling of the wind in an ocean basin, ... -
Real-time hybrid model testing of a braceless semi-submersible wind turbine. Part II: Experimental results
Bachynski, Erin Elizabeth; Thys, Maxime; Sauder, Thomas Michel; Chabaud, Valentin Bruno; Sæther, Lars Ove (Chapter; Peer reviewed, 2016)Real-Time Hybrid Model (ReaTHM) tests of a braceless semi-submersible wind turbine were carried out at MARINTEK’s Ocean Basin in 2015. The tests sought to evaluate the performance of the floating wind turbine (FWT) structure ... -
Real-time hybrid model testing of a semi-submersible 10mw floating wind turbine and advances in the test method
Thys, Maxime; Chabaud, Valentin Bruno; Sauder, Thomas Michel; Eliassen, Lene; Sæther, Lars Ove; Magnussen, Øyvind (Chapter, 2018)This article presents the Real-Time Hybrid Model (ReaTHM®) tests that were performed on a 10-MW semi-submersible floating wind turbine in the Ocean Basin at SINTEF Ocean in March 2018. The ReaTHM test method was used for ... -
Theoretical and experimental investigation of a free running fishing vessel at small frequency of encounter
Thys, Maxime (Doktoravhandlinger ved NTNU, 1503-8181; 2013:327, Doctoral thesis, 2013)The hydrodynamic behaviour of a fishing vessel in a seaway was studied. The focus was on small frequencies of encounter, corresponding to following and stern quartering seas, where fishing vessels are susceptible to capsize. ... -
Theory and Experiments of a Free-Running Fishing Vessel in Stern Sea
Thys, Maxime; Faltinsen, Odd Magnus (Chapter; Peer reviewed, 2014)Hydrodynamic aspects of a modern fishing vessel during manoeuvring in a seaway was studied theoretically and experimentally. The focus was on small frequencies of encounter, corresponding to following and stern quartering ... -
Validation of Hydrodynamic Loads on a Large-Diameter Monopile in Regular Waves
Hoseini Dadmarzi, Fatemeh; Thys, Maxime; Bachynski, Erin Elizabeth (Chapter, 2019)Validated hydrodynamic load models for large-diameter support structures are increasingly important as the industry moves towards larger offshore wind turbines. Experiments at 1:50 scale with stiff, vertical, bottom-fixed, ... -
Validation of Numerical Wave Tank Simulations Using REEF3D With JONSWAP Spectra in Intermediate Water Depth
Pakozdi, Csaba; Fouques, Sebastien; Thys, Maxime; Kamath, Arun Mulky; Wang, Weizhi; Hoseini Dadmarzi, Fatemeh; Bachynski, Erin Elizabeth; Bihs, Hans Sebastian (;Paper No: OMAE2020-18298, V001T01A012, Chapter, 2020)As offshore wind turbines increase in size and output, the support structures are also growing. More sophisticated assessment of the hydrodynamic loads is needed, particularly for the ultimate limit state design. For ...