North American Wind Energy Academy 2015 Symposium: Recent submissions
Now showing items 21-40 of 82
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Engaging a Multidisciplinary Group of Students in Wind Energy Education through the Planning and Execution of a KidWind Challenge at James Madison University
(Virginia Tech, 2015-06-10)The Center for Wind Energy (CWE) at James Madison University (JMU) has hosted Virginia KidWind Challenge for the last three years. During the spring semester, 2015, Remy Pangle, Education and Outreach Coordinator for the ... -
An evaluation of power performance for a small wind turbine in turbulent wind regimes
(Virginia Tech, 2015-06) -
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 ... -
Aerodynamic Validation of Wind Turbine Airfoil Models in the Virginia Tech Stability Wind Tunnel
(Virginia Tech, 2015-06-09) -
Application of Fast Pressure-Sensitive Paint to an Oscillating Wind Turbine Airfoil
(Virginia Tech, 2015-06)In the unsteady flow environment experienced by wind turbine blades, large excursions in local angle of attack and significant three-dimensional flows arise that complicate the prediction of stall onset and unsteady loading. ... -
Analytical Unsteady aerodynamics model of a Horizontal axis wind turbines due to linear change in wind speed
(Virginia Tech, 2015-06)Small wind turbines use MPPT (Maximum power point Tracking) algorithm that depends on the performance relation developed using a steady BEM [Blade Element Momentum] code. However, small wind turbines work under harsh ... -
Overcoming Wind Deployment Challenges
(Virginia Tech, 2015-06) -
The Forcing of Wind Turbine Rotors by True Weather Events as a Function of Atmosphere Stability State
(Virginia Tech, 2015-06-11) -
Modeling Dynamic Stall for a Free Vortex Wake Model of Floating Offshore Wind Turbines
(Virginia Tech, 2015-06-11)Floating offshore wind turbines in deep waters offer significant advantages to onshore and near-shore wind turbines. However, due to the motion of floating platforms in response to wind and wave loading, the aerodynamics ... -
Benefits of vertically-staggered wind turbines from theoretical analysis and Large-Eddy Simulations
(Virginia Tech, 2015-06) -
Understanding Model Uncertainty – An Application of Uncertainty Quantification to Wind Energy
(Virginia Tech, 2015-06)Wind resource characterization and short-term wind power forecasts often utilize mesoscale meteorological models such as the Weather Research and Forecasting (WRF) model. Because of the finite nature of the model grid, ... -
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 ... -
Experimental Study of Turbulence Influence on Wind Turbine Performance
(Virginia Tech, 2015-06)Regarding the issue about unmatched Reynolds number for downscaled wind turbine tests in wind tunnels, a study of the performance characteristics of a model wind turbine operating in the wake of another turbine of the same ... -
Modifications of the k-kL-ω Transition Model based on Pohlhausen and Falkner-Skan Profiles
(Virginia Tech, 2015-06)We will present novel modifications of the three-equation k-kL-ω eddy viscosity model proposed by Walters and Cokljat [1] for the adverse pressure gradient flows that occur on wind turbine blades and airfoils. The original ... -
NSF Programs in Energy and Power Systems
(Virginia Tech, 2015-06-09) -
Analysis of Tower Shadow Effects on the UAE Rotor Blades
(Virginia Tech, 2015-06)A leading obstacle hindering the development of wind turbines to extreme scale is the structural integrity of the blades. Downwind rotors have been shown to give structural advantages for larger systems. However, there is ... -
Wind Turbine Tower Fairing Geometries to Decrease Shadow Effects
(Virginia Tech, 2015-06)Tower fairings are a promising method to reduce wake for down wind turbines, with the drawback that the performance may be lost at high angles of attack. For example, the E863 airfoil has a much smaller wake than a cylinder ... -
Noise and Vibration Issues of Wind Turbines and Their Impact – A Review
(Virginia Tech, 2015-06)This paper presents a systematic review of current literature on the issues of noise and vibration of wind turbines and their impact on human health and wild life. The paper reviews the literature on the issues of noise ...