Numerical investigation on the influence of nonuniform tip clearance on rotor tip-clearance flow field structure [PDF]
HeliyonA numerical study was conducted on an axial compressor, the NASA Stage 35, with three nonuniform tip clearances to understand the effect of a different shape tip clearances rotor on the compressor's performance. The results demonstrated that by modifying
Guochen Zhang +4 more
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Mixing Performance of the Modified Tesla Micromixer with Tip Clearance [PDF]
Micromachines, 2022 A passive micromixer based on the modified Tesla mixing unit was designed by embedding tip clearance above the wedge-shape divider, and its mixing performance was simulated over a wider range of the Reynolds numbers from 0.1 to 80. The mixing performance
Makhsuda Juraeva, Dong-Jin Kang
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An Optical Fiber Bundle Sensor for Tip Clearance and Tip Timing Measurements in a Turbine Rig [PDF]
Sensors, 2013 When it comes to measuring blade-tip clearance or blade-tip timing in turbines, reflective intensity-modulated optical fiber sensors overcome several traditional limitations of capacitive, inductive or discharging probe sensors. This paper presents the signals and results corresponding to the third stage of a multistage turbine rig, obtained from a ...
Iker Garcia +2 more
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Numerical investigation of tip clearance effects on the performance of ducted propeller
International Journal of Naval Architecture and Ocean Engineering, 2015 Tip clearance loss is a limitation of the improvement of turbomachine performance. Previous studies show the Tip clearance loss is generated by the leakage flow through the tip clearance, and is roughly linearly proportional to the gap size.
Ding Yongle, Song Baowei, Wang Peng
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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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Numerical investigations of tip clearance flow characteristics of a pumpjet propulsor
International Journal of Naval Architecture and Ocean Engineering, 2018 In this study, numerical investigations of the tip clearance flow characteristics of a pumpjet propulsor based on Computational Fluid Dynamics (CFD) method have been presented.
Lin Lu, Yuefei Gao, Qiang Li, Lin Du
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Energy Performance and Flow Patterns of a Mixed-Flow Pump with Different Tip Clearance Sizes
Energies, 2017 Tip clearance between blade end and shroud is inevitable in pump operation and of great importance on pump energy performance and pressure fluctuation. As the tip clearance size increases, the head and efficiency of the mixed flow pump drop accordingly ...
Yabin Liu, Lei Tan, Yue Hao, Yun Xu
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Experimental Investigation of High Temperature-Resistant Inductive Sensor for Blade Tip Clearance Measurement [PDF]
Sensors, 2018 Turbine tip clearance of aero-engine is important to engine performance. Proper control of rotor tip clearance contributes to engine efficiency improvement and fuel consumption reduction. Therefore, accurate tip clearance measurement is essential.
Ziyu Zhao +3 more
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Blade by Blade Tip Clearance Measurement [PDF]
International Journal of Rotating Machinery, 2011 This paper describes a capacitance-based tip clearance measurement system which engineers have used in the most demanding turbine test applications.
A. G. Sheard
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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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