段鑫泽,程萍,万德成.带偏航角串列式两风机复杂尾流场数值模拟[J].海洋工程,2019,37(2):50~58
带偏航角串列式两风机复杂尾流场数值模拟
Numerical study of wake interaction between two wind turbines operating in different yaw angles
  
DOI:10.16483/j.issn.1005-9865.2019.02.006
中文关键词:  风电场  偏航角  致动线模型  气动功率  尾流干扰效应  大涡模拟
英文关键词:wind farm  yaw  actuator line model  aerodynamic power  wake interaction  large eddy simulation
基金项目:国家自然科学基金项目(51879159,51490675,11432009,51579145);长江学者奖励计划(T2014099);上海高校特聘教授岗位跟踪计划(2013022);上海市优秀学术带头人计划(17XD1402300);工信部数值水池创新专项VIV/VIM项目(2016 23/09)
作者单位E-mail
段鑫泽 上海交通大学 船舶海洋与建筑工程学院 海洋工程国家重点实验室上海 200240
高新船舶与深海开发装备协同创新中心上海 200240 
 
程萍 上海交通大学 船舶海洋与建筑工程学院 海洋工程国家重点实验室上海 200240
高新船舶与深海开发装备协同创新中心上海 200240 
 
万德成 上海交通大学 船舶海洋与建筑工程学院 海洋工程国家重点实验室上海 200240
高新船舶与深海开发装备协同创新中心上海 200240 
dcwan@sjtu.edu.cn 
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中文摘要:
      在多风机风电场中,通过主动调节上游风机的偏航角度,抑制上游风机尾流对下游风机的影响,减少风力机机组之间的尾流相互干扰,以达到提高整个风电场效率的目的。采用基于开源平台OpenFOAM自主开发的FOWT-UALM-SJTU求解器中风电场求解模块ALMWindFarmFoam,将致动线模型与CFD方法相结合,利用大涡模拟(LES)计算研究当上游风机处于不同偏航角度时,两风机之间的复杂尾流干扰效应。对比分析偏航角度改变时,上下游风机气动功率的输出特性,尾流速度变化以及风机的尾涡结构。数值模拟结果表明:在上下游风机沿流向方向距离保持不变的情况下,随着上游风机偏航角度的变化,上下游风机的尾流干扰现象以及下游风机的入流条件会发生明显改变,并会对下游风机的气动功率输出以及两风机风电场的整体流场产生显著影响。
英文摘要:
      In wind farms, the downstream wind turbines are distributed by the upstream wake, and the wake interaction among wind turbines has a great influence on the performance of the wind turbines. To reduce this effect, a control strategy based on the yaw angle can be a method for actively controlling the direction of the wake, and thereby improving the power output of whole wind farm. In this paper, large eddy simulations combined with the actuator line model are conducted in the in-house CFD code FOWT-UALM-SJTU Solver based on open source CFD platform OpenFOAM to simulate the wind farm which contains two tandem wind turbines when the upstream wind turbine is operated in different yaw conditions. According to the analysis of power outputs, wake characteristics, and vortex structures, when the upstream wind turbine is operating in the different yaw conditions, the behavior of the wake and the inlet condition of the downstream wind turbine will be affected to a great extent. And the yawed wake will also have a significant influence on the aerodynamic power output of the downstream wind turbine and the whole flow field around the wind farm.
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