摘要
致动模型是一种较新的CFD计算模型,通过在N-S方程添加源项的形式模拟叶片对流场的作用,减少了网格数量和计算时间。本文结合面元法在致动模型上提出一种改进致动面模型,并在OpenFoam平台对改进致动面模型进行尾流预测,数值研究了NREL Phase VI水平轴风力机在均匀来流中的流场特性,对垂直和错排两种排布方式下的多风机尾流流场特性作出分析,如涡结构、速度亏损、尾迹干涉等,为深入研究风力机尾流以及风场开发提供了一定的依据。
The actuator model is one kind of newly CFD calculation model,by adding equivalent forces to represent the rotor while the surrounding flow field is governed by a full set of NS equations,therefore,the grid number and computing time can be significantly reduced.This paper developed an improved actuator surface model,which based on the actuator line model and panel model,and numerical simulated the field properties of PHASE VI horizontal axis wind turbine under uniform inflow on the OpenFoam platform.It analyzed the perpendicularly arranged and staggered arranged wind turbines under different wind speeds,including distributions of interference factors,vortex structures,velocity deficit,wake interaction,etc,facilitating detailed studies of basic features of both the near field wake and far field wake.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2015年第6期1223-1227,共5页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目(No.51376180)
关键词
改进致动面
尾流干涉
多风机
improved actuator surface
wake interaction
multi-wind turbine
