Results 21 to 30 of about 49,035 (213)
Prediction of the Influence of Runner Tip Clearance on the Performance of Tubular Turbine
Journal of Marine Science and Engineering, 2022 Tubular turbine is a type of turbine with low-head. Due to the fact that the runner of a tubular turbine is of axial-flow type, there will be a certain width of blade tip between the blade and the chamber.
Yanzhao Wu +7 more
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Leakage Flow Characteristics in Blade Tip of Shaft Tubular Pump
Journal of Marine Science and Engineering, 2023 The shaft tubular pump device is widely used in various water diversion projects because of its ultra-low head and large flow characteristics. Due to the tip clearance between the blade and the shroud, it is easy to cause hydraulic mechanical performance
Zhikang Lin +5 more
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Aerospace, 2023 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.
Takayuki Matsunuma, Takehiko Segawa
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Research on Numerical Calculation for Aerodynamic Characteristics Analysis of Ducted Fan [PDF]
Xibei Gongye Daxue Xuebao, 2018 By taking a typical ducted fan system model as the research object, the unsteady aerodynamics calculation method is established based on slide dynamic mesh technology.
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Effects of the Shock Wave Structure on the Tip Clearance Leakage Flow in Transonic Compressor Rotors
International Journal of Aerospace Engineering, 2023 The interaction between shock waves and the tip clearance flow in a transonic compressor rotor has important effects on the tip clearance flow and the rotor aerodynamic performance.
Xinlong Ye, Zhenggui Zhou
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Review of research on tip-timing and tip clearance measurement technology
Journal of Hebei University of Science and Technology, 2021 Turbine blades will fail due to fatigue fracture caused by vibration at high-speed rotation,resulting in damage of rotating machinery.Blade tip-timing measurement technology is the most promising non-contact blade vibration real-time monitoring method at
Liang ZHANG +3 more
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Computed Effect of Varying Tip Clearance and Axial Gap on Gas Turbine Stage Performance Part (I): (Steady Flow) [PDF]
The Egyptian International Journal of Engineering Sciences and Technology, 2016 turbine, imprecise axial gap and tip clearance are two significant sources ofinefficiency. This work investigates the effect of change in parameters such asaxial gap and tip clearance on axial flow gas turbine used in power generation.Different ...
M Gobran, M Nassief, M Shaalan, W Elwan
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Numerical analysis for the effect of tip clearance in a low specific speed mixed-flow pump
Advances in Mechanical Engineering, 2019 To study the influence of tip clearance on performance (external characteristics, pressure fluctuation and tip loss) of a low specific speed mixed-flow pump, unsteady simulation was performed for the whole flow passage with five tip clearance sizes ( δ 0
Zhiyi Yu +3 more
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Numerical simulation of tip clearance impact on a pumpjet propulsor
International Journal of Naval Architecture and Ocean Engineering, 2016 Numerical simulation based on the Reynolds Averaged Navier–Stokes (RANS) Computational Fluid Dynamics (CFD) method had been carried out with the commercial code ANSYS CFX. The structured grid and SST k–ω turbulence model had been adopted.
Lin Lu, Guang Pan, Jing Wei, Yipeng Pan
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Energies, 2021 To explain the effect of tip leakage flow on the performance of an axial-flow transonic compressor, the compressors with different rotor tip clearances were studied numerically. The results show that as the rotor tip clearance increases, the leakage flow
Botao Zhang +3 more
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