Journal
JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME
Volume 145, Issue 6, Pages -Publisher
ASME
DOI: 10.1115/1.4057014
Keywords
computational fluid dynamics; design of offshore structures; fluid-structure interaction; hydrodynamics; ocean waves and associated statistics
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Increasing offshore wind turbine deployment is crucial for boosting green renewable energy production. Efficient identification of extreme events and evaluation of hydrodynamic loads are vital for cost reduction. Numerical modeling helps to pre-screen sea states, prioritizing model tests and minimizing design times and costs.
Increased deployment of offshore wind turbines is seen as an important pathway to increase green renewable energy production. Improved and rapid identification of extreme events and evaluation of hydrodynamic loads due to such events is essential to reduce the cost of energy production. Numerical modeling to pre-screen sea states and to identify the crucial events to prioritize model tests will make a major contribution to reduce design times and costs for such structures. In this effort, a highly efficient and nonlinear numerical model based on the Laplace equations is used to generate undisturbed wave kinematics. Such a simulation is used to identify extreme wave events in a sea state realization, and further, the wave loading due to such events are evaluated using Morison formula. Events screened in this manner can then be transferred to a high-resolution model such as a Navier-Stokes equation-based solver to investigate the hydrodynamics in detail. The implementation and application of such an approach in the open-source hydrodynamic model REEF3D is presented in this work.
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