Results 31 to 40 of about 29,026 (312)
Multiple Wind Turbine Wakes Modeling Considering the Faster Wake Recovery in Overlapped Wakes [PDF]
Energies, 2019 In a wind farm some wind turbines may be affected by multiple upwind wakes. The commonly used approach in engineering to simulate the interaction effect of different wakes is to combine the single analytical wake model and the interaction model. The higher turbulence level and shear stress profile generated by upwind turbines in the superposed area ...
Zhenzhou Shao +4 more
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The galactic wake model of the Magellanic Stream [PDF]
Symposium - International Astronomical Union, 1979 Tidal interaction models for the origin of the Magellanic Stream have been fairly successful in reproducing the radial velocities of the Stream (Lin and Lynden-Bell 1977, Davies and Wright 1977). However, no investigator has yet attained a self consistent treatment in which (1) the LMC and SMC are bound for at least 5×109 yr, (2) the passing Magellanic
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Wind Farm Modeling with Interpretable Physics-Informed Machine Learning
Energies, 2019 Turbulent wakes trailing utility-scale wind turbines reduce the power production and efficiency of downstream turbines. Thorough understanding and modeling of these wakes is required to optimally design wind farms as well as control and predict their ...
Michael F. Howland, John O. Dabiri
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Evolution of eddy viscosity in the wake of a wind turbine [PDF]
Wind Energy Science, 2023 The eddy viscosity hypothesis is a popular method in wind turbine wake modeling for estimating turbulent Reynolds stresses. We document the downstream evolution of eddy viscosity in the wake of a wind turbine from experimental and large-eddy-simulation ...
R. Scott +4 more
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A linear wake expansion function for the double‐Gaussian analytical wake model
Energy Science & Engineering, 2023 The double‐Gaussian (DG) approach for analytical wake modeling leads to a better understanding of the wake transition mechanism within a full‐wake region behind a non‐yawed horizontal‐axis wind turbine (HAWT).
Qidun Maulana Binu Soesanto +2 more
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Aircraft Wake-Vortex Evolution in Ground Proximity: Analysis and Parameterization
, 2006 Field measurement data of 282 wake vortex pairs and respective environmental conditions acquired at Frankfurt Airport by means of lidar, Sodar/RASS, and ultrasonic anemometer are used to analyze wake vortex behavior in ground proximity. Exceptional cases
Steen, Meiko +3 more
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A mathematical model for a wake.
Michigan Mathematical Journal, 1984 A free boundary problem for a wake around an obstacle in a two dimensional incompressible, inviscid fluid flow has been considered. Sufficient conditions for the existence of wakes in doubly and simply connected starlike regions have been formulated.
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EnergiesLarge-scale wind farms operate under highly unsteady atmospheric inflows, where transient turbulence, dynamic wake interactions, and inflow-wake coupling reduce energy production and exacerbate turbine loads.
Rongzhe Yang +9 more
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Energies, 2023 Offshore wind energy development along the East Coast of the US is proceeding quickly as a result of large areas with an excellent wind resource, low water depths and proximity to large electricity markets. Careful planning of wind turbine deployments in
Rebecca J. Barthelmie +2 more
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The vortex wake of a ‘hovering’ model hawkmoth
Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 1997 Visualization experiments with Manduca sexta have revealed the presence of a leading–edge vortex and a highly three–dimensional flow pattern. To further investigate this important discovery, a scaled–up robotic insect was built (the ‘flapper’) which could mimic the complex movements of the wings of a hovering ...
van den Berg, C., Ellington, C.P.
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