Results 1 to 10 of about 23,580 (116)

Experimental investigation of the tip leakage flow in a low-speed multistage axial compressor [PDF]

open access: yesScience Progress, 2020
Casing pressure measurements and Stereoscopic Particle-Image Velocimetry (SPIV) measurements are used together to characterize the behavior of the rotor tip leakage flow at both the design and near-stall conditions in a low-speed multistage axial ...
Jun Li, Jun Hu, Chenkai Zhang
doaj   +2 more sources

Control and Entropy Analysis of Tip Leakage Flow for Compressor Cascade under Different Clearance Sizes with Endwall Suction [PDF]

open access: yesEntropy, 2020
To investigate the influence of the change of tip clearance size on the control effect of the endwall suction, the effects of endwall suction on the aerodynamic performance of the axial compressor cascade were studied numerically.
Botao Zhang   +3 more
doaj   +2 more sources

Effects of Tip Leakage Flow on the Aerodynamic Performance and Stability of an Axial-Flow Transonic Compressor Stage

open access: yesEnergies, 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   +3 more sources

The axial tip clearance leakage analysis of the squealer blade tip for the liquid-ring pump [PDF]

open access: yesScientific Reports
The gas-liquid two phase leakage flow in the clearance of Liquid ring pump has severe negative impact on its hydraulic performance. In order to analyze the flow structure of leakage flow and suppress it, the squealer blade tip was introduced to Liquid ...
Xiaoxiao Wei   +4 more
doaj   +2 more sources

Influence of grooved rib tip structure on tip loss and heat transfer in a gas turbine blade

open access: yesFrontiers in Energy Research, 2022
This study focuses on the effects of three groove tip structures (full rib groove tip, partial rib tip on the suction side, and partial rib tip on the pressure side) on tip leakage flow, aerodynamic characteristics of a cascade, and heat transfer in a ...
Zhiqi Kong, Tianyi Zhang, Wei Du
doaj   +1 more source

Understanding of tip clearance flow structure in high speed mixed flow compressor

open access: yesPropulsion and Power Research, 2023
This paper addresses the necessity to make a physical interpretation of a highly complex three-dimensional tip clearance flow field study for high-speed mixed-flow compressor having stage exit static pressure to inlet total pressure ratio of 3.8 with 39 ...
Hemant Kumar, Chetan S. Mistry
doaj   +1 more source

Accuracy Investigations of Dynamic Characteristic Predictions of Tip Leakage Flow Using Detached Eddy Simulation

open access: yesAerospace, 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
doaj   +1 more source

Effects of the Shock Wave Structure on the Tip Clearance Leakage Flow in Transonic Compressor Rotors

open access: yesInternational 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

Comparative Study on the Fractal and Fractal Dimension of the Vortex Structure of Hydrofoil’s Tip Leakage Flow

open access: yesFractal 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

Influence of Blade Lean on Performance and Shock Wave/Tip Leakage Flow Interaction in a Transonic Compressor Rotor [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
Blade lean has been extensively used in axial compressor stators to control flow separations, but its influence mechanism on transonic compressor rotors remains to be revealed.
Z. Cao, X. Zhang, Y. Liang, B. Liu
doaj   +1 more source

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