Active vibration control via an array of synthetic jet actuators was investigated experimentally in a wind tunnel. Using synthetic jets the flow over a small scale S809 finite wind turbine blade was controlled, resulting in reduction of the blade's structural vibrations. The effectiveness of the synthetic jets was explored for a range of post-stall angles of attack at Reynolds numbers between 7.1 × 104 and 2.38 × 105. The blade vibrations were measured and quantified using a pair of strain gauges mounted at the root of the model. Using flow control, significant vibration reduction was observed for some post-stall angles of attack. A correlation between vibration reduction and the degree of flow reattachment, measured using Particle Image Velocimetry, was found.
Active Vibration Control of a Wind Turbine Blade Using Synthetic Jets
Victor MaldonadoRelated information
1 Mechanical, Aerospace, and NuclearEngineering Department, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
, Matthew BoucherRelated information2 Electrical, Computer, and Systems Engineering Department, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
, Rebecca OstmanRelated information1 Mechanical, Aerospace, and NuclearEngineering Department, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
, Michael AmitayRelated information1 Mechanical, Aerospace, and NuclearEngineering Department, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
Published Online: April 02, 2010
Abstract