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Effect of Propeller Suction on Wake
To examine the relation between effective wake fraction and propeller thrust loading coefficient, the contraction of flow in front of a propeller due to propeller suction was studied by use of the flow visualization method. It was shown that the rate of the contraction depends mainly upon the propeller thrust loading coefficient and is nearly estimated
Tetsuo Nagamatsu, Takao Sasajima
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Integrated Wind Farm Power Curve and Power Curve Distribution Function Considering the Wake Effect and Terrain Gradient [PDF]
This work presents a computational method for the simulation of wind speeds and for the calculation of the statistical distributions of wind farm (WF) power curves, where the wake effects and terrain features are taken into consideration.
Siyu Tao +4 more
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Manta ray foraging optimization (MRFO) algorithm is relatively a novel bio-inspired optimization technique directed to given real-world engineering problems.
Fatima Daqaq +4 more
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Sleep–Wake Disturbances: Common Side Effect
For sleep-wake disturbances, standards of care are based on established evidence-based practice. Sleep-wake disturbances are defined as ongoing issues with sleep or daytime sleepiness (e.g., circadian rhythm disorder, hypersomnia, insomnia, narcolepsy, sleep apnea). Sleep-wake disturbances are estimated to occur in 35%-75% of patients with ...
Suzanne M, Mahon, Ellen, Carr
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Study on Complex Wake Characteristics of Yawed Wind Turbine Using Actuator Line Method
In modern large-scale wind farms, power loss caused by the wake effect is more than 30%, and active yaw control can greatly reduce the influence of the wake effect by deflecting the wind turbine’s wake.
Tengyuan Wang +8 more
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Wind Farm Power Prediction Considering Layout and Wake Effect: Case Study of Saudi Arabia
The world’s technological and economic advancements have led to a sharp increase in the demand for electrical energy. Saudi Arabia is experiencing rapid economic and demographic growth, which is resulting in higher energy needs. The limits of fossil fuel
Khadijah Barashid +2 more
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Modelling the Wake Flow Behind a Model of Horizontal Axis Wind Turbine using RANS Approach: A Comparative Study [PDF]
Steady CFD simulations, which is based on Reynolds Average Navier-Stokes (RANS) approach, were conducted for a model of Horizontal Axis Wind Turbine (HAWT) and compared with experimental data in order to assess the accuracy of these models in simulating ...
Abd Elnaby Kabeel +3 more
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District of Namaacha in Maputo Province of Mozambique presents a high wind potential, with an average wind speed of around 7.5 m/s and huge open fields that are favourable to the installation of wind farms.
Paxis Marques João Roque +2 more
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Optimization of the Number, Hub Height and Layout of Offshore Wind Turbines
In order to make full use of the potential of wind resources in a specific offshore area, this paper proposes a new method to simultaneously optimize the number, hub height and layout of a wind farm.
Haiying Sun, Hongxing Yang, Siyu Tao
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The integration of commercial onshore large-scale wind farms into a national grid comes with several technical issues that predominately ensure power quality in accordance with respective grid codes.
Shah Rukh Abbas +7 more
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