...Proceedings of the ASME 2022 4th International Offshore Wind Technical Conference IOWTC2022 December 7-8, 2022, Boston, MA, USA IOWTC2022-98645 CFD SIMULATIONS OF TWO TANDEM SEMI-SUBMERSIBLE FLOATING OFFSHORE WIND TURBINES USING A FULLY-COUPLED FLUID-STRUCTURE-INTERACTION SIMULATION METHODOLOGY...

... analysis tool composed of an improved ALM and in-house CFD code based on OpenFOAM is employed to perform numerical simulations for two spar-type FOWTs with a tandem layout under given regular wave and uniform wind conditions. Coupled aero-hydro-elastic responses of the floating wind turbine are compared...

... if Computational Fluid Dynamics (CFD) is capable of predicting realistic random 3-hour extreme waves. Since the maximum 3-hour load is driven by the highest and steepest waves we will look into the distribution of the maximum 3-hour crest height and the corresponding wave steepness of these events. A comparison...

... in CFD modelling, the offshore industry has started using CFD as an alternative method to compute the hydrodynamic damping of offshore vessels. In order to help adopt CFD as a widely accepted tool, there is a need to develop confidence in CFD predictions. Therefore, a practical Modelling Practice...

... Abstract Springing of hull girder to very high harmonics of wave loads is investigated thoroughly using one-way coupling with the help of two-way direct coupling between Computational Fluid Dynamics (CFD) and Finite Element Method (FEM). A segmented barge is chosen as a subject model, in which...

... numerically. Numerical Wave Tanks (NWT) are being considered as a possible substitute for model tests for well-defined scope of works. Such techniques based on Computational Fluid Dynamics (CFD) using Euler’s equations have been applied to the rectangular barge with skirts as a test case for this new...

... water turbine CFD Proceedings of the ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering OMAE2022 June 5-10, 2022, Hamburg, Germany OMAE2022-81210 POWER PRODUCTION FROM A HYDROKINETIC DEVICE: MASS OF WATER TURBINE Azin Lamei Civil Engineering Department University...

... in the moonpool are calculated using CFD. Subsequently, the slamming pressure results are used in a structural FEM model to calculate the stress on the structural elements. The fatigue life of the structure inside the moonpool is predicted using suitable S-N curves from classification society rules...

... Abstract A Computational Fluid Dynamics (CFD) analysis of air entrapment and structural response during flat plate entry to water is presented. Slamming loads remain of concern for the design of safe and efficient ships and offshore structures to ensure structural integrity during extreme...

... an oscillatory frequency of 1 Hz, the resultant liquid impact reduced within the partitioned setup due to the suppression of wave dynamics. sloshing pendulum-tank oscillation rectangular tank CFD NITA VOF Proceedings of the ASME 2022 41st International Conference on Ocean, Offshore and Arctic...

... of the surface elevation and the velocity field. The open-source CFD code OpenFOAM contains two solution algorithms (interFoam and interIsoFoam), which are used for ocean wave simulations and wave load predictions. The algorithms are often applied using a too coarse spatial discretisation, which violates...

... and converted it to an accurate 3D terrain model that is suitable for carrying out computational fluid dynamics (CFD) analysis. Further, the newly developed approach will be used to evaluate the contribution of the terrain to the collapse of a high voltage transmission tower near Saurdal a town in north-western...

... system is insufficient, especially the effects of sail geometry and position on lift and drag. In this study, three arc-shaped sails are selected, and the geometric and spacing parameters are chosen as variables. The Computational Fluid Dynamics (CFD) method is applied to perform the simulations. The 2D...

... the design may not be easy when model test results become available, further on in the project. Therefore, the development of a reliable and fast prediction technique would be valuable to improve the design of moored semi-submersibles. Such a method may be CFD, which has the potential to predict the motions...

... is established to simulate this structure under a range of wave frequencies. The viscous model takes advantage of the finite volume solver to accomplish computational fluid dynamic (CFD) analysis. Convergence and stability of the model are evaluated for different mesh resolutions and correspondingly...

..., is applied to model the mixed long-crest wave composed of wind-sea and swell components. Based on an in-house computational fluid dynamics (CFD) solver, a numerical wave tank is developed and the wave generating method by defining the velocity inlet boundary condition is used to simulate the mixed wave...

..., which were used to present the flow communication between ship and environment. ONRT damaged ship maneuverability turning circle zigzag CFD validation Proceedings of the ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering OMAE2022 June 5-10, 2022, Hamburg...

... Abstract A numerical investigation about the effect of ship model scale on turning maneuver has been presented in this study. A preliminary US Navy surface combatant, David Taylor Model Basin (DTMB) 5415M, is chosen as the object of study. An in-house computational fluid dynamics (CFD) solver...

... measured data, estimated with empirical models or simulated in detail using computational fluid dynamics (CFD). Forces can be applied to the finite element model both in the time domain and in the frequency domain. The findings from Random Vibration Theory using a given forcing PSD, reconstructed force...

... Abstract Sliding Grids (SG) and Overset Grids (OG) are two CFD methods for discretizing the domain with several sub-grids, with the potential of enabling complex body motion in unsteady simulations. Their fundamental difference lies on the sub-grid placement, fitted into each other (SG...