COMPUTATIONAL PREDICTION OF ICING EFFECTS ON AERODYNAMIC CHARACTERISTICS OF A WIND TURBINE BLADE

A significant change in aerodynamic characteristics of wind turbine blade can occur by ice formed on the surface of the blade operated in cold climate. The ice accretion can result in performance loss, overloading due to delayed stall, and excessive vibration associated with mass imbalance. In this study, the impact of ice accretion on the aerodynamic characteristics of NREL 5MW wind turbine blade sections is examined by a CFD-based method. It is shown that the thickness of ice accretion increases from the root to the tip and the effects of icing conditions such as relative wind velocity play a significant role in the shape of ice accretion. In addition, the computational results are used to assess the degradation in the lift and drag coefficients of the blade sections.

[1]  M. Papadakis,et al.  Experimental Investigation of Water Droplet Impingement on Airfoils, Finite Wings, and an S-duct Engine Inlet , 2002 .

[2]  Clovis R. Maliska,et al.  EVALUATION OF COLLECTION EFFICIENCY METHODS FOR ICING ANALISYS , 2003 .

[3]  Wagdi G. Habashi,et al.  FENSAP-ICE's Three-Dimensional In-Flight Ice Accretion Module: ICE3D , 2003 .

[4]  M. Reggio,et al.  Numerical Study of Flow Around Iced Wind Turbine Airfoil , 2012 .

[5]  Mann-Eung Kim,et al.  Predicting the Aerodynamic Characteristics of 2D Airfoil and the Performance of 3D Wind Turbine using a CFD Code , 2008 .

[6]  Rho-Shin Myong,et al.  Scaling Methods for Icing Wind Tunnel Test , 2012 .

[7]  Rho-Shin Myong,et al.  An efficient CFD-based method for aircraft icing simulation using a reduced order model , 2011 .

[8]  D. M. Somers,et al.  Design and experimental results for the S809 airfoil , 1997 .

[9]  R. W. Gent,et al.  Aircraft icing , 2000, Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences.

[10]  Rho-Shin Myong,et al.  AN EULERIAN-BASED DROPLET IMPINGEMENT AND ICE ACCRETION CODE FOR AIRCRAFT ICING PREDICTION , 2010 .

[11]  Rho-Shin Myong,et al.  A Study on Truncated Flapped Airfoil for Efficient Icing Wind Tunnel Test , 2011 .

[12]  R. J. Kind,et al.  Experimental and computational simulation of in-flight icing phenomena , 1998 .

[13]  Wagdi G. Habashi,et al.  A Finite Element Method Study of Eulerian Droplets Impingement Models , 1999 .

[14]  R. S. Myong,et al.  Ice Accretion Effect on the Aerodynamic Characteristics of KC-100 Aircraft , 2010 .