Results 11 to 20 of about 41,220 (167)
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
doaj +1 more source
Spectral proper orthogonal decomposition of compressor tip leakage flow [PDF]
Physics of Fluids, 2021 To identify the spatiotemporal coherent structure of compressor tip leakage flow, spectral proper orthogonal decomposition (SPOD) is performed on the near-tip flow field and the blade surface pressure of a low-speed compressor rotor. The data used for the SPOD analysis are obtained by delayed-detached eddy simulation, which is validated against the ...
Xiao He +3 more
openaire +3 more sources
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
doaj +1 more source
Aerospace, 2022 A centrifugal compressor of a micro turbine generator system is investigated by the theoretical model and numerical analysis to explore the characteristics of the tip leakage vortex as the centrifugal compressor approaches stall. The numerical simulation
Shuli Hong, Jun Chi, Xin Xiang, Weiyu Lu
doaj +1 more source
Energies, 2022 Cavity width and height are two key geometric parameters of squealer tips, which could affect the control effect of squealer tips on tip leakage flow (TLF) of gas turbines.
Yufan Wang +4 more
doaj +1 more source
Fractal and Fractional, 2023 Axial-flow turbomachinery is widely used in low head water transfer and electricity generation projects. As there is a gap between the impeller and casing of the tubular flow unit, the fluid will cross the gap to form tip leakage flow, which may induce ...
Zilong Hu +4 more
doaj +1 more source
Aeroacoustic Investigation of a Single Airfoil Tip Leakage Flow [PDF]
International Journal of Aeroacoustics, 2010 Combined near and far field aeroacoustic measurements have been carried out during an original laboratory scale low Mach number (0–0.3) experiment about the tip leakage flow past a single non-rotating airfoil. Such measurements were made possible by the use of a single airfoil located in the potential core of an open jet flow in the anechoic wind ...
Jacob, Marc C. +3 more
openaire +6 more sources
International Journal of Turbomachinery, Propulsion and Power, 2021 A Large-Eddy Simulation of the tip leakage flow of a single airfoil is carried out. The configuration consists of a non-rotating, isolated airfoil between two horizontal plates with a gap of 10 mm between the tip of the airfoil and the lower plate.
David Lamidel +3 more
doaj +1 more source
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
doaj +1 more source
Axial Flow Fan Tip Leakage Flow Control Using Tip Platform Extensions [PDF]
Journal of Fluids Engineering, 2010 Performance of an axial flow fan unit is closely related to its tip leakage mass flow rate and level of tip/casing interactions. The present experimental study uses a stereoscopic particle image velocimeter to quantify the three dimensional mean flow observed near the blade tip, just downstream of a ducted fan unit. After a comprehensive description of
Ali Aktürk, Cengiz Camci
openaire +1 more source