The curled wake model: equivalence of shed vorticity models

The curled wake model: equivalence of shed vorticity models
复制标题

卷曲尾流模型:棚涡模型的等效性

DOI:
--
复制
发表时间:
2020
期刊:
Journal of Physics: Conference Series
影响因子:
--
通讯作者:
E. Branlard
E. Branlard
中科院分区:
--
文献类型:
--
作者:
L. Martínez‐Tossas;E. Branlard

文献摘要

被引文献

相似文献

在这项工作中,我们研究了偏航风力机后的展向速度。在卷曲尾迹模型中,这些运动是由旋翼平面上脱落的一系列涡流引起的。偏航产生的涡量方向与主流(流向)方向一致。流向涡度诱导沿展向方向的速度。这些都是产生卷曲尾迹机制的运动。在这项工作中,我们探索了一种更准确的这种机制的公式,使用涡柱。在某些假设下,新的和原始的卷曲尾迹模型产生了相同的数学公式。此外,这两个模型都预测了涡旋强度的椭圆形分布,其中主要的区别是涡旋的位置。
In this work, we explore the spanwise velocities in the wake of a yawed wind turbine. In the curled wake model, these motions are induced by a collection of vortices shed from the rotor plane. The direction of the vorticity generated by yaw is aligned with the main flow (streamwise) direction. The streamwise vorticity induces velocities in the spanwise directions. These are the motions responsible for creating the curled wake mechanism. In this work, we explore a more accurate formulation for this mechanism, using a vortex cylinder. Under certain assumptions, the new and original curled wake models yield the same mathematical formulation. Also, both models predict an elliptic distribution of vortex strength, where the main difference is the location of the vortices.