Collaborative Research: Simulation Based Design for Deep Water Offshore Wind Turbines Including Wave Loads and Motions

PIs将开发一种高性能的计算流体动力学（CFD）工具，能够模拟海上风力涡轮机的气动-水弹性问题。该工具基于通用CFD代码CFDShip-Iowa，采用了最先进的技术，并已在船舶流体力学和陆上风力涡轮机的许多应用中得到验证，适用于各种条件。pi计划通过实现（不可压缩）粘性流动Navier-Stokes方程求解器（考虑到公用事业规模的风力涡轮机的低叶尖速度）和使用全三维网格来开发CFD工具，该网格将解决转子（旋转叶片）、机舱和塔的完整几何形状。将研究规则波和随机波；叶尖涡和其他湍流结构将使用分离涡模拟进行建模。该建议建立在pi先前所做的工作的基础上，其中包括流体结构相互作用。这项工作具有潜在的变革性，因为拟议的项目将为风力涡轮机社区提供一个经过验证的、高保真的工具，以指导海上风力涡轮机的设计。就更广泛的影响而言，基于仿真的设计工具可以被风力涡轮机社区用于提高海上风力涡轮机的效率，同时最大限度地减少涡轮机和塔的振动。有可能为加强美国的经济和能源安全作出重大贡献，包括减少进口和温室气体排放。虽然欧洲已经开发了海上风电场，但美国还没有建造海上风电场，而国内开发的设计工具可能有助于提高美国在该领域的竞争力。PI将在开展研究的同时促进教学、培训和学习，特别是针对塔斯基吉大学首席PI中代表性不足的群体。

AbstractCollaborative Proposal1066873 Xing1066627 CarricaThe PIs will develop a high performance Computational Fluid Dynamics (CFD) tool capable of simulating the aero-hydroelastic problem of offshore wind turbines. The tool is based on the general-purpose CFD code CFDShip-Iowa, which uses state-of-the-art technology and has been validated for many applications in ship hydrodynamics and onshore wind turbines for a wide range of conditions. The PIs plan to develop the CFD tool by implementing an (incompressible) viscous flow Navier-Stokes equation solver (justified by low tip speeds of utility-scale wind turbines) and the use of full 3-D grids that will resolve the full geometry of the rotor (rotating blades), the nacelle, and the tower. Regular and random waves will be studied; tip vortices and other turbulent structures will be modeled using detached eddy simulation. The proposal builds on previous work performed by the PIs which includes fluid structure interaction. The work is potentially transformative in that the proposed project will provide the wind turbine community with a validated, high fidelity tool to guide the design of offshore wind turbines.In terms of broader impacts, the simulation based design tool can be used by the wind turbine community to increase the efficiency of offshore wind turbines while minimizing turbine and tower vibrations. There is the potential to make substantial contributions to enhance the economic and energy security of the United States including reductions of imports and greenhouse gases. Although offshore wind farms have been developed in Europe, no offshore wind farms have been built in the US, and domestically developed design tools may be helpful in advancing American competitiveness in this area. The PIs will promote teaching, training and learning while conducting the research, particularly with respect to underrepresented groups for the lead PI at Tuskegee University.