Development of flow separation control system to reduce the vibration of wind turbine blades

Ho-Young Kim; Ho-Hyun Kim; Jong-Seob Han; Jae-Hung Han

doi:10.1117/12.2259874

11 April 2017 Development of flow separation control system to reduce the vibration of wind turbine blades

Ho-Young Kim, Ho-Hyun Kim, Jong-Seob Han, Jae-Hung Han

Proceedings Volume 10164, Active and Passive Smart Structures and Integrated Systems 2017; 101642V (2017) https://doi.org/10.1117/12.2259874
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2017, Portland, Oregon, United States

Abstract

The size of wind turbine blade has been continuously increased. Large-scale wind turbine blades induce loud noise, vibration; and maintenance difficulty is also increased. It causes the eventual increases of the cost of energy. The vibration of wind turbine blade is caused by several reasons such as a blade rotation, tower shadow, wind shear, and flow separation of a wind turbine blade. This wind speed variation changes in local angle of attack of the blades and create the vibration. The variation of local angle of attack influences the lift coefficient and causes the large change of the lift. In this study, we focus on the lift coefficient control using a flow control device to reduce the vibration. DU35-A15 airfoil was employed as baseline model. A plasma actuator was installed to generate the upwind jet in order to control the lift coefficient. Wind tunnel experiment was performed to demonstrate of the performance of the plasma actuator. The results show the plasma actuator can induce the flow separation compared with the baseline model. In addition, the actuator can delay the flow separation depending on the input AC frequency with the same actuator configuration.

Citation Download Citation

Ho-Young Kim, Ho-Hyun Kim, Jong-Seob Han, and Jae-Hung Han "Development of flow separation control system to reduce the vibration of wind turbine blades", Proc. SPIE 10164, Active and Passive Smart Structures and Integrated Systems 2017, 101642V (11 April 2017); https://doi.org/10.1117/12.2259874

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available