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Weidong Cao, He Wang and Jian Tang
Guide vane submersible centrifugal pumps are a kind of submersible pump, and the fluid inside the pump is often mixed with gravel and other impurities during operation, affecting the pump?s operating efficiency and life expectancy. However, past studies ...
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Sierra Legare and Marek Stastna
RANS simulations have been broadly used to investigate turbulence in the oceans and atmosphere. Within these environments there are a multitude of tracers undergoing reactions (e.g., phytoplankton growth, chemical reactions). The distribution of these re...
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Hadar Ben-Gida
Weapons bays have gained much attraction in the last decade, mainly in the context of next-generation aircraft. Although internal store carriage provides numerous advantages, aero-mechanical challenges still exist, particularly for safe store separation....
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Wenhui Yan, Zhaozheng Sun, Junwei Zhou, Kun Zhang, Jiahui Wang, Xiao Tian and Junqian Tian
One of the most commonly used techniques in aerospace engineering is the RANS (Reynolds average Navier?Stokes) approach for calculating the transonic compressor flow field, where the accuracy of the computation is significantly affected by the turbulence...
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Yudi Xing, Weijie Chen, Xingyu Wang, Fan Tong and Weiyang Qiao
Among the several noise-generation mechanisms of airfoil self-noise, trailing-edge bluntness noise is an important noise source, which is caused by the vortex shedding at blunt trailing edges. A numerical study on airfoil trailing-edge bluntness noise co...
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Qiaoyue Yang, Wei Li, Leilei Ji, Weidong Shi, Wei Pu, Yu Long and Xinrui He
This study presents a comprehensive investigation of the internal noise characteristics of a mixed-flow pump by combining computational fluid dynamics (CFD) and computational acoustics. The turbulent flow field of the pump is simulated using the unsteady...
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Yaping Zhao, Yanrong Li, Jianjun Feng, Mengfan Dang, Yajing Ren and Xingqi Luo
Tubular turbines are widely used in low water head and tidal power development due to their straight flow path, simple structure, and wide efficient area. However, the severe vibration during actual operation greatly affects the safe operation of the tub...
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Giannino Ponchio Camillo, Alexander Wagner, Takahiko Toki and Carlo Scalo
This work investigates a hypersonic turbulent boundary layer over a 7°" role="presentation">7°7°
7
°
half angle cone at a wall-to-total temperature ratio of 0.1, M∞=7.4" role="presentation">??8=7.4M8=7.4
M
8
=
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and Re∞...
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Dapeng Xiong, Yinxin Yang and Yanan Wang
An improved synthetic eddy method (SEM) is proposed in this paper for generating the boundary layer at the inlet of a computational domain via direct numerical simulation. The improved SEM modified the definition of the radius and the velocities of the e...
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Joshua D. Blake, Adrian Sescu, David Thompson and Yuji Hattori
Large-eddy simulation (LES)-based jet noise predictions do not resolve the entire broadband noise spectra, often under-predicting high frequencies that correspond to un-resolved small-scale turbulence. The coupled LES-synthetic turbulence (CLST) model is...
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