Numerical investigation of nonlinear diffraction wave loads on a suspended cylinder
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hdl:2117/369095
Tipus de documentComunicació de congrés
Data publicació2022-06-21
EditorUniversitat Politècnica de Catalunya. Iniciativa Digital Politècnica
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
Floating offshore wind turbines (FOWTs) interact with waves in complex sea conditions, inparticular wave-induced nonlinear diffraction wave loads can excite the resonant response of FOWTs in the low frequency range. In this paper, a fixed rigid suspended cylinder (considereda simplification of the support columns of a complex structure) is analyzed for nonlinear waveloads under regular waves using OpenFOAM, an open-source Computational fluid dynamics(CFD) software, to obtain nonlinear hydrodynamic load characteristics of a simple structurein regular waves. Results are compared with experimental and potential flow analysis with theCFD model yielding better estimates of first, second and third order wave diffraction loads than the engineering model using potential flow theory. Engineering models based on second-order potential flow theory are not effective in predicting the second and third order wave
diffraction loads.
CitacióWang, Ming [et al.]. Numerical investigation of nonlinear diffraction wave loads on a suspended cylinder. A: "Maritime Transport Conference", 2022, núm. 9
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