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首页> 外文期刊>Ocean Engineering >Development and validation of a tightly coupled CFD/6-DOF solver for simulating floating offshore wind turbine platforms
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Development and validation of a tightly coupled CFD/6-DOF solver for simulating floating offshore wind turbine platforms

机译：紧密耦合的CFD / 6-DOF解算器的开发和验证，用于模拟海上浮动风力涡轮机平台

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摘要

Simulations of offshore floating wind turbine platform dynamics typically utilize engineering tools that include simplified modeling assumptions. In this study, an open-source CFD/6-DOF solver is developed using OpenFOAM for high-fidelity simulation of offshore floating wind turbine platforms. The solver tightly couples the fluid and 6-DOF equations of motion using subiterations and dynamic relaxation to eliminate the artificial added mass instability. Validation of the tightly coupled CFD/6-DOF solver is carried out on a benchmark case of the free decay of a heaving cylinder. The solver is then used in simulations of the DeepCwind semisubmersible platform and compared with FAST, a NREL engineering tool. The CFD/6-DOF solver and FAST are compared in four cases including both rotational and translational motion. Overall, the results demonstrate that the tightly coupled solver compares well with FAST. The tightly coupled CFD/6-DOF solver represents an advance in modeling of offshore wind turbine platform dynamics using open-source software that may be used for wind turbine research, design, and analysis. (c) 2015 Elsevier Ltd. All rights reserved.
机译：海上浮动式风力涡轮机平台动力学仿真通常利用包括简化建模假设在内的工程工具。在这项研究中，使用OpenFOAM开发了开源CFD / 6-DOF解算器，用于海上浮式风力涡轮机平台的高保真仿真。求解器使用子迭代和动态松弛将流体和6自由度运动方程紧密耦合，以消除人为增加的质量不稳定性。紧密耦合的CFD / 6-DOF求解器的验证是在起伏圆柱体自由衰减的基准情况下进行的。然后将求解器用于DeepCwind半潜式平台的仿真中，并与NREL工程工具FAST进行比较。在四种情况下（包括旋转运动和平移运动）比较了CFD / 6-DOF解算器和FAST。总体而言，结果表明紧密耦合的求解器与FAST相比具有很好的对比性。紧密耦合的CFD / 6-DOF解算器代表了使用开源软件对海上风力涡轮机平台动力学建模的进步，该软件可用于风力涡轮机的研究，设计和分析。 （c）2015 Elsevier Ltd.保留所有权利。

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