|Color contours account for the creation of mean kinetic energy along the spanwise direction. Positive values (red) indicate a turbulent kinetic energy flux in the negative spanwise direction, while negative (blue) values denote a flux in the positive spanwise direction. For both set of simulations, by increasing the tip speed ratio, the entrainment of mean kinetic energy increases for a given streamwise distance from the rotor disk.
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A team of researchers from The University of Texas at Dallas (UT Dallas) has developed a new way to extract more power from the wind. This approach has the potential to increase wind power generation significantly with a consequent increase in revenue. Numerical simulations performed at the Texas Advanced Computing Center (TACC) indicate potential increases of up to six to seven percent.
According to the researchers, a one percent improvement applied to all wind farms in the nation would generate the equivalent of $100 million in value. This new method, therefore, has the potential to generate $600 million in added wind power nationwide.
In the branch of physics known as fluid dynamics, a common way to model turbulence is through large eddy simulations. Several years ago, Stefano Leonardi and his research team created models that can integrate physical behavior across a wide range of length scales — from turbine rotors 100 meters long, to centimeters-thick tips of a blades — and predict wind power with accuracy using supercomputers.
New Energy Control Strategy Helps Reap Maximum Power from Wind Farms
Aaron Dubrow, Texas Advanced Computing Center, University of Texas, Dallas