摘要
塔影效应是影响风机气动性能的关键因素之一,该文就风机塔架对浮式风机非稳态气动性能的影响进行分析研究。该文应用naoe-FOAM-SJTU求解器对含塔架风机的气动性能进行数值模拟分析。模型网格采用重叠网格技术进行处理,计算模型选用美国国家可再生能源实验室的NREL-5MW大型风机。通过数值计算可以分别得到风机和塔架所受气动推力的历时曲线,同时得到精细的流场分布信息。通过改变塔架到叶片之间的距离,分析塔影效应随塔架与叶片距离增大而减弱的作用规律。通过分析不同截面位置流场压力分布,充分理解塔影效应的作用机理。
Tower shadow effect has great influence on the aerodynamic performance of the wind turbine. Unsteady aerodynamic simulations of a wind turbine are conducted with CFD in this paper. The OpenFOAM based solver naoe- FOAM-os-SJTU is employed for the aerodynamic simulation. The structure model of NREL-5MW baseline wind turbine is established, and the overset grid technique is adopted. With the numerical simulation, the aerodynamic thrusts on turbine blades and tower are obtained, and detailed flow information near the turbine blades and tower is available. By changing the distance between tower and rotor, the influence of the rotor-tower distance on the tower shadow effect is studied.
作者
程萍
黄扬
万德成
CHENG Ping;HUANG Yang;WAN De-cheng(Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration,State Key Laboratory of Ocean Engineering,School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2018年第5期545-551,共7页
Chinese Journal of Hydrodynamics
基金
国家自然科学基金项目(51879159
11432009和51579145)
长江学者奖励计划(T2014099)
上海高校东方学者特聘教授岗位跟踪计划(2013022)~~
