Results 21 to 30 of about 29,026 (312)
Numerical Investigation on the Gas Field Generated by High Pressure Gas Atomizer Focused on Physical Mechanisms of Gas Recirculation and Wake Closure Phenomenon [PDF]
Archives of Metallurgy and Materials, 2022 Physical mechanisms of gas recirculation and wake closure were investigated by modeling the gas field generated by High Pressure Gas Atomizer using computational fluid dynamics.
Mingxiang Liu, Shan Zhou
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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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Remote Sensing, 2019 Accurate prediction of wind turbine wakes is important for more efficient design and operation of wind parks. Volumetric wake measurements of nacelle-mounted Doppler lidars are used to characterize the wake of a full-scale wind turbine and to validate an
Peter Brugger +4 more
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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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Introduction to and comparison of deep learning and optimization approaches to analytical wake modeling of a tilted wind turbine [PDF]
Wind Energy ScienceThis paper introduces innovative optimization and deep learning techniques to enhance the prediction of complex wake dynamics in the downstream wind velocity of tilted wind turbines.
J. Cutler, C. Bay, A. Ning
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Study on Kelvin wake scattering characteristics of turning ship
Zhongguo Jianchuan Yanjiu, 2023 ObjectiveThis study focuses on the turning ship Kelvin wake and its electromagnetic scattering characteristics in order to provide a theoretical foundation for the detection and recognition of nonlinear ship wakes.
Jianan YAN, Ding NIE, Min ZHANG
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Simulation of wake vortex effects for UAVs in close formation flight [PDF]
, 2009 This paper addresses the development of multiple UAV deployment simulation models that include representative aerodynamic cross-coupling effects. Applications may include simulations of autonomous aerial refuelling and formation flying scenarios.
Whidborne, James F. +5 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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Toward Development of a Stochastic Wake Model: Validation Using LES and Turbine Loads
Energies, 2017 Wind turbines within an array do not experience free-stream undisturbed flow fields. Rather, the flow fields on internal turbines are influenced by wakes generated by upwind unit and exhibit different dynamic characteristics relative to the free stream ...
Jae Sang Moon +4 more
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Frontiers in Energy Research, 2022 The development of new wake models is currently one of the key approaches envisioned to further improve the levelized cost of energy of wind power. While the wind energy literature abounds with operational wake models capable of predicting in fast-time ...
Maxime Lejeune +2 more
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