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:
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发表时间:
2020
期刊:
影响因子:
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通讯作者:
E. Branlard
中科院分区:
文献类型:
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作者:
L. Martínez‐Tossas;E. Branlard
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.