Results 21 to 30 of about 43,466 (261)
Wind tunnel investigations of an individual pitch control strategy for wind farm power optimization [PDF]
Wind Energy ScienceThis article presents the results of an experimental wind tunnel study which investigates a new control strategy named Helix. The Helix control employs individual pitch control for sinusoidally varying yaw and tilt moments to induce an additional ...
F. V. Mühle +3 more
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Livelihood recovery in the wake of the tsunami in Aceh [PDF]
Bulletin of Indonesian Economic Studies, 2009 Abstract This article provides a brief overview of issues relating to livelihood recovery assistance and achievements in Aceh since the December 2004 tsunami. ‘Livelihood’ programs were intended to help tsunami-affected households quickly resume productive activities and return to ‘normal’ life.
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New WAKE Key Recovery Protocol on M-commerce [PDF]
, 2003 The ASPeCT project first tried to support the key recovery in wireless authentication and key establishment protocol Since then, a variety of protocols have been proposed. In this thesis, problems of conventional protocols are analyzed and new protocol is suggested to solve those problems.
Yong-Ho Lee, Im-Yeong Lee, Hyung-Woo Lee
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Computers & Fluids, 2021 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Onel, Huseyin C., Tuncer, Ismail H.
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On the wake re-energization of the X-Rotor vertical-axis wind turbine via the vortex-generator strategy [PDF]
Wind Energy ScienceWake losses are a significant source of inefficiency in wind farm arrays, hindering the development of high-energy-density wind farms offshore. Studies have demonstrated the potential of vertical-axis wind turbines (VAWTs) to achieve high-energy-density ...
D. Bensason +2 more
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Wind, 2022 An accurate choice of the inflow parameters has been shown to affect the CFD results significantly. In this study, the actuator disk method (AD) is used to investigate the effects of the widely used inflow formulations, the logarithmic and power-law ...
Khashayar RahnamayBahambary +1 more
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Dynamic induction control for mitigation of wake-induced power losses: a wind tunnel study under different inflow conditions [PDF]
Wind Energy ScienceDynamic induction control (DIC), also known as the pulse method, is a wake mixing strategy that has shown promising results for mitigating wake-induced power losses in wind farms. It relies on dynamic collective blade pitching to enhance turbulent mixing,
M. A. Zúñiga Inestroza +7 more
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Journal of Marine Science and Engineering, 2023 The study of hydrodynamic characteristics of floating double-rotor horizontal axis tidal current turbines (FDHATTs) is of great significance for the development of tidal current energy. In this paper, the effect of roll motion on a FDHATT is investigated
Muyu Zhao, Ying Chen, Jin Jiang
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Energies, 2019 The Reynolds-averaged Navier−Stokes (RANS)-based generalized actuator disc method along with the Reynolds stress model (AD/RANS_RSM) is assessed for wind turbine wake simulation.
Linlin Tian +4 more
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Numerical investigation of rotor asymmetry to promote wake recovery
Journal of Physics: Conference Series, 2023 Abstract Tip vortices in the wakes of wind turbines are known to have detrimental effects on downstream turbines such as reduced performance and increased fatigue loading. Rotor asymmetry is investigated as a passive method for mitigating these effects by triggering the helical vortex pairing instability.
Abraham, Aliza +3 more
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