Unsteady hydrodynamic simulation of a floating offshore wind turbine with oscillating pitch motion
The aerodynamic performance of the floating offshore wind turbines is much more complex than that of bottom-fixed wind turbines because of the motions of the supporting platform.In this paper, the unsteady aerodynamic performance of the NREL-5MW Baseline wind turbine with periodical pitch motions of its supporting platform is investigated.The three-dimensional Reynolds Averaged Navier-Stokes equations are solved for the aerodynamic numerical simulation.The naoe-FOAM-os-SJTU solver, which is based on OpenFOAM and overset grid technique, is employed.From the simulation, the time series of the unsteady torque and thrust are obtained, the detailed information of the wake flow field is also available to clarity the detailed flow filed information.The simulation results show that the pitch motion has significant effect on the aerodynamic forces and moments of the rotor, and the effect improves obviously when the amplitude of the pitch motion increases.The tower impacts are also analyzed in this paper.
periodical pitch motion overset grid technology naoe-FOAM-os-SJTU solver tower impacts
Ping Cheng Yong Ai Decheng Wan
State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai, China
国际会议
The Second Conference of Global Chinese Scholars on Hydrodynamics(第二届全球华人水动学学术会议)
江苏 无锡
英文
807-814
2016-11-11（万方平台首次上网日期，不代表论文的发表时间）