CFD Analysis on Aerodynamic Design Optimization of Wind Turbine Rotor Blades
Wind energy has been shown to be one of the most
viable sources of renewable energy. With current technology, the low
cost of wind energy is competitive with more conventional sources of
energy such as coal. Most blades available for commercial grade
wind turbines incorporate a straight span-wise profile and airfoil
shaped cross sections. These blades are found to be very efficient at
lower wind speeds in comparison to the potential energy that can be
extracted. However as the oncoming wind speed increases the
efficiency of the blades decreases as they approach a stall point. This
paper explores the possibility of increasing the efficiency of the
blades at higher wind speeds while maintaining efficiency at the
lower wind speeds. The design intends to maintain efficiency at
lower wind speeds by selecting the appropriate orientation and size
of the airfoil cross sections based on a low oncoming wind speed and
given constant rotation rate. The blades will be made more efficient
at higher wind speeds by implementing a swept blade profile.
Performance was investigated using the computational fluid
dynamics (CFD).
[1] NTK500/41
http://130.226.17.201/extra/web_docs/nordtank/WT_description.pdf
[2] Hasen M. ,2000, "Aerodynamics of Wind Turbines"
[3] Piggott H. "Small Wind Turbine Design Notes"
http://users.aber.ac.uk/iri/WIND/TECH/WPcourse/index.html
[4] Larwood, S. and Zuteck, M., 2006, "Swept Wind Turbine Blade
Aeroelastic Modeling for Loads and Dynamic Behavior".
[5] Mandas, N., Cambuliand, F., and Carcangiu, C., 2006, "Numerical
Prediction of Horizontal Axis Wind Turbine Flow," University of
Caglairi, EWEC 2006, Athens, Business, Science, and Technology.
[6] Ferrer, E. and Munduante, W., 2007,. "Wind Turbine Blade Tip
Comparisons Using CFD." Journal of Physics Conference series 75,
012005
[1] NTK500/41
http://130.226.17.201/extra/web_docs/nordtank/WT_description.pdf
[2] Hasen M. ,2000, "Aerodynamics of Wind Turbines"
[3] Piggott H. "Small Wind Turbine Design Notes"
http://users.aber.ac.uk/iri/WIND/TECH/WPcourse/index.html
[4] Larwood, S. and Zuteck, M., 2006, "Swept Wind Turbine Blade
Aeroelastic Modeling for Loads and Dynamic Behavior".
[5] Mandas, N., Cambuliand, F., and Carcangiu, C., 2006, "Numerical
Prediction of Horizontal Axis Wind Turbine Flow," University of
Caglairi, EWEC 2006, Athens, Business, Science, and Technology.
[6] Ferrer, E. and Munduante, W., 2007,. "Wind Turbine Blade Tip
Comparisons Using CFD." Journal of Physics Conference series 75,
012005
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:57697", author = "R.S. Amano and R.J. Malloy", title = "CFD Analysis on Aerodynamic Design Optimization of Wind Turbine Rotor Blades", abstract = "Wind energy has been shown to be one of the most
viable sources of renewable energy. With current technology, the low
cost of wind energy is competitive with more conventional sources of
energy such as coal. Most blades available for commercial grade
wind turbines incorporate a straight span-wise profile and airfoil
shaped cross sections. These blades are found to be very efficient at
lower wind speeds in comparison to the potential energy that can be
extracted. However as the oncoming wind speed increases the
efficiency of the blades decreases as they approach a stall point. This
paper explores the possibility of increasing the efficiency of the
blades at higher wind speeds while maintaining efficiency at the
lower wind speeds. The design intends to maintain efficiency at
lower wind speeds by selecting the appropriate orientation and size
of the airfoil cross sections based on a low oncoming wind speed and
given constant rotation rate. The blades will be made more efficient
at higher wind speeds by implementing a swept blade profile.
Performance was investigated using the computational fluid
dynamics (CFD).", keywords = "CFD, wind turbine blade, renewable energy.", volume = "3", number = "12", pages = "1516-5", }