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Nanxuan Qiao, Tielin Ma, Jingcheng Fu, Ligang Zhang, Xiangsheng Wang and Pu Xue
The rising interest in the evolvability of electric vertical takeoff and landing (eVTOL) promises substantial potential in the field of urban air mobility (UAM). Challenges in energy storage density and geometry restriction both emphasize the propeller e...
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Yanzhong Wang, Delong Dou and Xiaoyan Dong
The non-return mechanism is the key device that plays the role of braking in the opening-and-closing electric actuator of an amphibious aircraft hatch door. The ball-and-socket contact pair, providing the pressing force, and the multi-disc friction pair,...
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Ning Li, Li Li, Yongqian Liu, Yulu Wu, Hang Meng, Jie Yan and Shuang Han
The actuator disc model (ADM) incorporated into the k-e turbulence model of EI Kasmi is able to simulate the wind farm wakes with high fidelity, which is essential for layout optimization and the evaluation of power production in modern wind farms. Howev...
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Peijian Lv, Mengmeng Zhang, Fei Cao, Defu Lin and Li Mo
This paper aims to establish an approach of power bookkeeping in a numerical study. To study the process of power conversion coursed in the flow field, the methodology employs a power-based analysis to quantify power terms. This approach is examined in a...
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Wei Zhong, Tong Guang Wang, Wei Jun Zhu and Wen Zhong Shen
The Actuator Disc/Navier-Stokes (AD/NS) method has played a significant role in wind farm simulations. It is based on the assumption that the flow is azimuthally uniform in the rotor plane, and thus, requires a tip loss correction to take into account th...
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Ola Eriksson, Simon-Philippe Breton, Karl Nilsson and Stefan Ivanell
The impact of the Coriolis force on the long distance wake behind wind farms is investigated using Large Eddy Simulations (LES) combined with a Forced Boundary Layer (FBL) technique. When using the FBL technique any mean wind shear and turbulent fluctuat...
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Anas Rahman, Vengatesan Venugopal and Jerome Thiebot
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Matevz Pintar and Athanasios J. Kolios
In order to obtain the maximum amount of energy from tidal stream extraction devices, deployment in large arrays should be studied. The area of seabed with favorable conditions is fairly limited; therefore layout spacing has to be optimized. In this pape...
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Shuhei Takahashi, Yuya Hata, Yuji Ohya, Takashi Karasudani and Takanori Uchida
To clarify the behavior of the blade tip vortices of a wind turbine equipped with a brimmed-diffuser shroud, called a ?Wind-Lens turbine?, we conducted a three-dimensional numerical simulation using a large eddy simulation (LES). Since this unique wind t...
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