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Takayuki Matsunuma and Takehiko Segawa
In an axial-flow turbine of a jet engine used for aircraft propulsion, the passage vortex (PV) and tip leakage vortex (TLV) generated inside the blade passage deteriorate the aerodynamic performance. In this study, a dielectric barrier discharge plasma a...
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Bing Qian, Yinhui Cai, Qiang Ding, Daoli Zhao, Weipeng Sun and Like Wang
Semi-open centrifugal pumps are widely used in various fields. However, the tip leakage vortex (TLV) has a malign effect on the impeller flow field. The structure and trajectory of a TLV under different discharge conditions were simulated and are discuss...
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Yexiang Xiao, Zhonghua Gui, Xuesong Li, Zekui Shu, Guangtai Shi and Chunwei Gu
In this paper, the gas-liquid flow is comprehensively analyzed under different inlet gas void fractions, and the effect of tip leakage vortex (TLV) on the gas flow pattern in multiphase pumps is revealed. The results show that the gas flow pattern in an ...
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Xidi Zhang, Zhihua Liu, Liushuai Cao and Decheng Wan
The occurrence of a tip leakage vortex (TLV) is a special phenomenon of ducted propellers, which has a significant influence on the propeller?s hydrodynamic performance and efficiency. The inception, evolution, and instability of the TLV under different ...
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Hu Zhang, Jun Wang, Desheng Zhang, Weidong Shi and Jianbo Zang
To understand the effect of cavitation on the tip leakage vortex (TLV), turbulent cavitating flows were numerically investigated using the shear-stress transport (SST) k?? turbulence model and the Zwart?Gerber?Belamri cavitation model. In this work, two ...
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Hu Zhang, Jianbo Zang, Weidong Shi and Desheng Zhang
To understand the formation mechanism and evolution process of the perpendicular cavitation vortex (PCV) of an axial flow pump for off-design conditions, turbulent cavitating flows were numerically investigated using the rotation curvature-corrected shea...
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