WRF simulation of frost event over Georgia in April. Flow of particles released in the mountains north of Atlanta. Thara Prabhakaran, University of Georgia
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Coupled weather-fire behavior simulation of the Esperanza wildfire near Cabazon, California during October 2006. The visualization shows the spread of the fire, the intensity of the fire, areas burned out by the fire, and the smoke released by the fire as it spread driven by Santa Ana winds in the San Jacinto Mountains in dry chaparral fuels. cdfdata.fire.ca.gov/incidents/incidents_details_info?incident_id=161 . Janice Coen, NCAR and Phil Riggan, USDA Forest Service |
As the United States moves toward utilizing more of its wind and water resources for electrical power generation, computational modeling will play an increasingly important role in improving the performance, decreasing costs, and accelerating deployment of wind and water power technologies. We are developing computational models to better understand the wake effects of wind and marine hydrokinetic turbines, which operate on the same principles. We show two studies: a wind-turbine array and marine hydrokinetic turbine array. Large-eddy simulations were used as precursors to generate the atmospheric and tidal channel turbulence, respectively. Turbines were then added to the domain, modeled using actuator lines that impose body forces on the flow field equal and opposite to the lift and drag created by the blades. |
A Sun-like star undergoes magnetic cyclic reversal shown by fieldliness colored by the longitudinal magnetic field (red positive, blue |