Results 11 to 20 of about 42,687 (263)
Aerospace, 2023 The accurate prediction of tip leakage flow is the premise for flow mechanism analysis and compressor performance optimization. The detached eddy simulation (DES) method, which compromises cost and accuracy, has excellent potential for a high Reynolds ...
Shiyan Lin, Ruiyu Li, Limin Gao, Ning Ge
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Design of a Tip Appendage for the Control of Tip Leakage Vortices in Axial Flow Fans [PDF]
Journal of Turbomachinery, 2020 Abstract This article reports on numerical investigations of passive control techniques used for the performance enhancement of a large diameter axial flow cooling fan through modification of the blade tip geometry. Using open-source software, a novel meshing strategy is developed to carry out both steady and unsteady numerical ...
Meyer T. O. +3 more
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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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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
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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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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
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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
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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
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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
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Tip Leakage Flow in Axial Compressors [PDF]
Journal of Turbomachinery, 1990 Experimental measurements in a linear cascade with tip clearance are complemented by numerical solutions of the three-dimensional Navier–Stokes equations in an investigation of tip leakage flow. Measurements reveal that the clearance flow, which separates near the entry of the tip gap, remains unattached for the majority of the blade chord when the tip
J. A. Storer, N. A. Cumpsty
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