The result shows that viscidity dissipation and tower effect are main reasons of wake eddy distortion.
结果表明：粘性耗散与塔架效应是引起尾涡变形的主要原因。
It is showed that being the interaction between primary air and upstream fluid, the shear eddy the the wake are formed on the two sides of the primary air respectively.
结果表明，一次风射流由于与上游横向射流的相互作用，在背火侧形成尾迹涡，在向火侧形成剪切涡。
The large eddy simulation methods can be used to analysis and calculate the decay and transport rules of wake vortex in near ground phases, but it′s too complex and difficult to use.
采用大涡模拟方法可以分析和计算近地阶段尾涡消散和运动规律，但模型繁琐、计算复杂。
By studying the autocorrelation function of the probe signal, it is found that the large eddy quasi ordering structure likely exists in near wake, but there is no turbulence in far wake.
结合探针信号的自相关函数，研究流场湍流结构，发现近尾可能存在大涡拟序结构，而在远尾则没有湍流。
Considering the process of dynamic influence of eddy flow at every section of blades, based on Equilibrium Wake model, dynamic Wake model simulates the dynamic aerodynamic calculations for the rotor.
动态尾流模型又基于平衡尾流模型，考虑桨叶每个截面处产生的涡流对风轮的动态影响过程，对风轮的气动计算进行动态模拟仿真。
Considering the process of dynamic influence of eddy flow at every section of blades, based on Equilibrium Wake model, dynamic Wake model simulates the dynamic aerodynamic calculations for the rotor.
动态尾流模型又基于平衡尾流模型，考虑桨叶每个截面处产生的涡流对风轮的动态影响过程，对风轮的气动计算进行动态模拟仿真。
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