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Peng Lin, Jifei Wu, Lianshan Lu, Neng Xiong, Dawei Liu, Jichuan Su, Guangyuan Liu, Yang Tao, Junqiang Wu and Xueqiang Liu
The effect of the Reynolds number on the flying wing common research model with a large sweep angle and small aspect ratio is studied by numerical simulation. The helicity cross-flow transition correction of the Langtry?Menter model is established in vie...
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Fan Yang, Pengcheng Chang, Yao Yuan, Na Li, Rongsheng Xie, Xiaowen Zhang and Zhikang Lin
Vertical axial flow pump device has the characteristics of large flow and low head, which is widely used in pumping station projects with head of 3?9 m. In order to study the influence of the timing effect of the impeller relative flow channel and guide ...
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Considering the helicity of Archimedean spiral coils, this paper proposes accurate expressions of mutual inductance and their numerical calculation methods, which can be applied in the wireless power transmission field, etc. Accurate expressions of mutua...
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Wencai Zhu and Hongtao Gao
The generation of tip vortex cavitation (TVC) is a common phenomenon in marine propellers. Therefore, it is important to find a way for the effective suppression of TVC. Based on the enlightenment of bionics, a propeller with winglets was numerically inv...
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Kai-Jun Yuan and André D Bandrauk
Electron coherence is a fundamental quantum phenomenon in today?s ultrafast physics and chemistry research. Based on attosecond pump?probe schemes, ultrafast X-ray photoelectron imaging of molecules was used to monitor the coherent electron dynamics whic...
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Babu Ram Tiwari, Mukul Kumar
Pág. 27 - 36
The Sun manifests its magnetic field in form of the solar activities, being observed on the surface of the Sun. The dynamo action is responsible for the evolution of the magnetic field in the Sun. The present article aims to present an overview of the st...
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Qian Cheng, Xiaolan Liu, Ho Seong Ji, Kyung Chun Kim and Bo Yang
Vertical axis wind turbines (VAWTs) are gradually receiving more and more interest due to their lower sensitivity to the yawed wind direction. Compared with straight blades VAWT, blades with a certain helicity show a better aerodynamic performance and le...
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Fedor V. Shugaev, Dmitri Y. Cherkasov and Oxana A. Solenaya
Acoustic radiation emitted by three-dimensional (3D) vortex rings in air has been investigated on the basis of the unsteady Navier?Stokes equations. Power series expansions of the unknown functions with respect to the initial vorticity which is supposed ...
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