Results 31 to 40 of about 44,613 (142)
Nihon Kikai Gakkai ronbunshu, 2023 Using a high-speed multistage scale model compressor simulating a middle stage of a gas turbine compressor for power generation, the effects of 3 types of rotor tip clearances on performance and operating range, and the vortex structure of rotor tip ...
Ryosuke SEKI
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Film cooling characteristics of squealer tip of a turbine blade
Xibei Gongye Daxue XuebaoThe high-speed and high-temperature gap leakage flow in the turbine blade tip clearance directly scours the tip of the rotor blade and generates a local high-temperature region, so the active and passive control of the gap leakage flow is very important.
WU Fangfang +4 more
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Tip Clearance Flows in Turbine Cascades
Chinese Journal of Aeronautics, 2008 AbstractThis article describes the effects of some factors on the tip clearance flow in axial linear turbine cascades. The measurements of the total pressure loss coefficient are made at the cascade outlets by using a five-hole probe at exit Mach numbers of 0.10, 0.14 and 0.19.
Wei, Li, Weiyang, Qiao, Dawei, Sun
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Influence of Tip Clearance on Pressure Fluctuation in Low Specific Speed Mixed-Flow Pump Passage
Energies, 2017 To explore the influence of tip clearance on pressure fluctuation in a low specific speed mixed-flow pump, tip clearances δ of 0.25 mm, 0.75 mm and 1.00 mm, along with no tip clearance, were selected.
Wenwu Zhang, Zhiyi Yu, Baoshan Zhu
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Blade Serial Number Identification Based on Blade Tip Clearance without OPR Sensor
Shock and Vibration, 2021 Blade serial number identification is one of the key issues in blade tip-timing vibration measurement without once-per-revolution (OPR) sensor. In order to overcome the shortcomings of the existing blade serial number identification methods without OPR ...
Liang Zhang +3 more
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Journal of Applied Fluid Mechanics, 2020 The impact of varying the tip clearance of each rotor on the performance of a counter-rotating axial compressor has been investigated based on numerical simulations.
T. Liang +4 more
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Journal of Applied Fluid Mechanics, 2018 In the current study, the influence of blade tip clearance in different stages of a three-stage compressor is investigated. Performance diagrams of compressor were verified against experiment when there is no change in the tip clearance, after which the ...
M. Ostad, R. Kamali
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Flow and Fast Fourier Transform Analyses for Tip Clearance Effect in an Operating Kaplan Turbine
Energies, 2019 The Kaplan turbine is an axial propeller-type turbine that can simultaneously control guide vanes and runner blades, thus allowing its application in a wide range of operations.
Hyoung-Ho Kim +3 more
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Energies, 2020 The tip clearance has an important effect on the performance of an engine compressor. While the impact of tip clearance on a concentric compressor has been widely explored in previous research, the flow field distribution of an eccentric compressor has ...
Chao Jiang +3 more
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Centrifugal compressor tip clearance and impeller flow [PDF]
Journal of Mechanical Science and Technology, 2016 Compressors consume a considerable portion of the electricity used in the industrial sector. Hence, improvements in compressor efficiency lead to energy savings and reduce environmental impacts. The efficiency of an unshrouded centrifugal compressor suffers from leakage flow over the blade tips.
Jaatinen-Värri, Ahti +6 more
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