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Bio-Inspired Trailing Edge Noise Control
(Virginia Tech, 2015-06)
Trailing edge noise remains a primary limiting factor in the widespread implementation of wind turbines, particularly near populated areas. Noise regulations commonly require acoustic de-rating of existing turbines, leading ...
Sensitivity of Wind Turbine Airfoil Sections to Geometry Variations Inherent in Modular Blades
(Virginia Tech, 2015-06-09)
In the ongoing work to increase the efficiency of large-scale, horizontal-axis wind turbines, the modular blade concept has been proposed. The aerodynamic performance of modular blades, whose baseline profile remains ...
Large Eddy simulation of Trailing Edge Acoustic Emissions of an Airfoil
(Virginia Tech, 2015-06)
The present investigation of trailing edge acoustic emission of an airfoil concerns the effects of the broadband noise generated by the interaction of turbulent boundary layer and airfoil trailing edge, and the tonal noise ...
Aerodynamic Effects of Painted Surface Roughness on Wind Turbine Blade Performance
(Virginia Tech, 2015-06-09)
This paper briefly examines the aerodynamic effects of typical wind turbine blade roughness by investigating an appropriate scaling criteria which best relates the roughness configuration to the resulting changes in ...
Aerodynamic Validation of Wind Turbine Airfoil Models in the Virginia Tech Stability Wind Tunnel
(Virginia Tech, 2015-06-09)
A Novel Rough Wall Boundary Condition for LES of high Reynolds Number Flows
(Virginia Tech, 2015-06)
The interactions between rough surfaces and fluid flows play an important role in turbulence simulation. The understanding of roughness elements at the wall (i.e., buildings and terrain features) to aerodynamics flow is ...