Results 11 to 20 of about 46,934 (254)
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
doaj +4 more sources
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
doaj +4 more sources
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
doaj +3 more sources
An optical fiber bundle sensor for tip clearance and tip timing measurements in a turbine rig. [PDF]
Sensors (Basel), 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 ...
García I +5 more
europepmc +6 more sources
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
doaj +2 more sources
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
doaj +3 more sources
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
doaj +2 more sources
A Review of Tip Clearance in Propeller, Pump and Turbine
Energies, 2018 Propellers, pumps, and turbines are widely applied in marine equipment, water systems, and hydropower stations. With the increasing demand for energy conservation and environmental protection, the high efficiency and the stable operation of pumps and ...
Yabin Liu, Lei Tan, Binbin Wang
doaj +3 more sources
Fluids, 2022 The multiphase rotodynamic pump is widely used in petroleum and gas exploitation, and blade tip clearance may cause flow instability and performance deterioration.
Weihua Sun +3 more
doaj +1 more source
Flow behaviors in a Kaplan turbine runner with different tip clearances
Advances in Mechanical Engineering, 2021 Tip clearance between the runner blade tip and shroud in a Kaplan turbine is inevitable, and the tip leakage flow (TLF) and tip leakage vortex (TLV) induced by the tip clearance have a considerable effect on the flow behaviors.
Yue Ma +6 more
doaj +1 more source