Yi-Ren Wang  1, Chi Tang1 and Chien-Chih Chiu2

1Department of Aerospace Engineering, Tamkang University, Tamsui, Taiwan 25137, R.O.C.
2China Airlines, Da-Yuan Dist. Taoyuan City, Taiwan 33758, R.O.C.


Received: July 24, 2017
Accepted: December 1, 2017
Publication Date: March 1, 2018

Download Citation: ||https://doi.org/10.6180/jase.201803_21(1).0013  


This research studied a dynamic wake and blade interacted wind turbine. The finite state dynamic wake theory was applied. The effects of the wake and the configuration of the modern trailing-edge-flap (TEF) on the wind turbine blade were analyzed. The lift and the stress distribution on the blade were performed by using semi-analytic and numerical wake theory (The finite state wake theory) and the combination with APDL (ANSYS Parametric Design Language) and FORTRAN code. The effects of TEFs, considering their span-wise lengths and index angles on wind turbine blades, were fully discussed. The thrusts and root stresses on the wind turbine blade were also presented. The wake effect of a 5MW turbine blade was verified by an existed numerical result. The present research showed that with identical shape and material of blades, installing TEF could increase the lift (thrust), while no significant rise in stress are produced at the root section of the blade.

Keywords: Blade Element Theory, Dynamic Wake, Fluid-structure Interaction, Trailing Edge Flap (TEF)


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