Abstract
The fully coupled aero-hydrodynamic simulation of the OC4 Phase II semi-submersible floating offshore wind turbine (FOWT) is conducted. The three-dimensional (3D) Reynolds-Averaged Navier–Stokes (RANS) equations, enclosed with the k–ω SST turbulence model are solved. The in-house code naoe-FOAM-SJTU solver, based on OpenFOAM and coupled with overset grid technology, is employed. The aerodynamic forces which decrease with the coupling effect of platform motions oscillate in wave period. With the aerodynamic forces applying on the platform through tower, the platform motions show significant variation on the equilibrium position of surge and pitch DOFs. Detailed flow information also clarities the flow fields and indicates the coupling effects.
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Acknowledgements
This work is supported by the National Natural Science Foundation of China (51879159, 51490675, 11432009, 51579145), Chang Jiang Scholars Program (T2014099), Shanghai Excellent Academic Leaders Program (17XD1402300), Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning (2013022), Innovative Special Project of Numerical Tank of Ministry of Industry and Information Technology of China (2016-23/09) and Lloyd’s Register Foundation for doctoral student, to which the authors are most grateful.
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Cheng, P., Wan, D. (2019). Fully Coupled Aero-Hydrodynamic Simulation of Floating Offshore Wind Turbines with Overset Grid Technology. In: Murali, K., Sriram, V., Samad, A., Saha, N. (eds) Proceedings of the Fourth International Conference in Ocean Engineering (ICOE2018). Lecture Notes in Civil Engineering, vol 22. Springer, Singapore. https://doi.org/10.1007/978-981-13-3119-0_42
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DOI: https://doi.org/10.1007/978-981-13-3119-0_42
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