Results 31 to 40 of about 142,074 (316)
A simple model of wake capture aerodynamics
Journal of The Royal Society Interface, 2023 Flapping wings may encounter or ‘capture’ the wake from previous half-stroke, leading to local changes in the instantaneous aerodynamic force on the wing at the start of each half-stroke. In this paper, I developed a simple approach to integrating prediction of these wake capture effects into existing analytical quasi-steady models for hovering insect ...
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Validation of wind turbine wake models with focus on the dynamic wake meandering model [PDF]
Journal of Physics: Conference Series, 2018 This analysis compares current wake models, such as the Sten Frandsen turbulence model, an engineering wind speed deficit and turbulence model developed by G. Chr. Larsen, the N. O. Jensen wind speed deficit description and three variations of the dynamic wake meandering (DWM) model to measurements from onshore wind farms. Special attention is given to
I. Reinwardt +4 more
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Effects of Wake Shapes on High-Lift System Aerodynamic Predictions
Aerospace, 2017 High-lift devices are commonly modelled using potential flow methods at the conceptual design stage. Often, these analyses require the use of prescribed wake shapes in order to avoid numerical stability issues.
William Bissonnette, Götz Bramesfeld
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南方能源建设, 2019 [Introduction] The paper aims to obtain the optimal layout of offshore wind farm and gain the maximum profit in the project life-cycle, it is high necessary to analyze its impact factors.
WU Di, LIU Huaixi, MIAO Desheng
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Probabilistic estimation of the Dynamic Wake Meandering model parameters using SpinnerLidar-derived wake characteristics [PDF]
Wind Energy Science, 2021 We study the calibration of the Dynamic Wake Meandering (DWM) model using high-spatial- and high-temporal-resolution SpinnerLidar measurements of the wake field collected at the Scaled Wind Farm Technology (SWiFT) facility located in Lubbock, Texas, USA.
D. Conti +3 more
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Journal of Physics: Conference Series, 2015 This paper presents a simple physical model to improve the currently used far-wake deficit models in the wind industry. The main improvement is deemed on the determination of the wake deficit in the near-wake. A Vortex Ring Model (VRM) is used to calculate the induced velocities in the near-wake, which are then coupled to the Jensen far-wake model and ...
Van Heemst, J.W. (author) +3 more
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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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A New Streamwise Scaling for Wind Turbine Wake Modeling in the Atmospheric Boundary Layer
Energies, 2022 In this study, we aim to investigate if there is a scaling of the streamwise distance from a wind turbine that leads to a collapse of the mean wake velocity deficit under different ambient turbulence levels.
Dara Vahidi, Fernando Porté-Agel
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Prediction of the Open-Water Performance of Ducted Propellers with a Panel Method
Journal of Marine Science and Engineering, 2018 In the present work, a comparison between the results obtained by a panel code with a Reynolds-averaged Navier-Stokes (RANS) code is made to obtain a better insight on the viscous effects of the ducted propeller and on the limitations of the inviscid ...
João Manuel Baltazar +3 more
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