The flowfield around the turbine is calculated using the prescribed wake model. In particular, a vortex core model and a vorticity dissipation model are introduced to cope with the divergence generally existing in vortex wake methods.
风力机的绕流用预定涡尾迹模型确定,并引入涡核模型和考虑粘性引起的耗散效应对模型进行修正,解决了涡尾迹方法在大叶尖速比时普遍存在的计算发散问题。
参考来源 - 水平轴风力机三维非定常气动特性计算研究·2,447,543篇论文数据，部分数据来源于NoteExpress
选择初值迭代求解自由涡线、涡核的强度和位置。
The strength and position of vortical cores and lines can iteratively be got by satisfying boundary conditions.
旋转射流的切向速度分布相当于射流中存在一个旋转的涡核。
The tangential velocity distribution measured in this study is similar to a vortex core existing along the jet axis.
首先从预定的广义尾流入手，并引入尖涡涡核作用的半经验修正，对旋翼的自由尾流进行计算分析。
Beginning with the prescribed wake model, a Semi Empirical Correction for the vortex core effect on rotor wake is made and free wake calculation is carried out.
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