TY - JOUR
TI - A CFD analysis of controlled flutter phenomenon
AU - Thirusangu Velmurugan
AU - Mahali Parammasivam Kanjikoil
JN - Thermal Science
PY - 2016
VL - 20
IS - 14
SP - 955
EP - 965
PT - Article
AB - In the present study, the concept of aero elastic wind energy generator is  utilized wind turbines and it applied to produce electricity at low wind  speeds. Flutter is the mechanism of dynamic instability in which the energy  can be extracted from the wind. This energy might possibly transform into  electric power. A straight rectangular wing with single degree of freedom at  stalling angle is employed to do suitable work for producing power. A  computational model of aero elastic wind energy generator is developed by  using ICEM CFD and the flow analysis is carried out at different speeds for  the prediction of co-efficient of power for the proposed device. Further a  small model is experimentally fabricated and tested in a wind tunnel with  different velocities using non-linear theory to predict the power  co-efficient of a model. The test results from experiment are compared with  the computational results. Thus it is evident that the correlated results are  accurate within the acceptable range. The input from the flow analysis is  used for structural analysis in ANSYS. The frequency, amplitude of  oscillation and phase response of the proposed system can be obtained and it  compared with the numerical values from MATLAB simulation of the same system  to ensure for obtaining sustained oscillation which is capable of producing  power. The flutter mechanism is having the advantage of producing power at  very low velocity, eventhough low efficiency.