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Control and Entropy Analysis of Tip Leakage Flow for Compressor Cascade under Different Clearance Sizes with Endwall Suction [PDF]
Entropy, 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
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The axial tip clearance leakage analysis of the squealer blade tip for the liquid-ring pump [PDF]
Scientific ReportsThe 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
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TASK Quarterly, 2006 Mechanisms of formation of the tip leakage over shrouded and unshrouded rotor blades are described in the paper. The loss diagrams for these two types of leakage in a wide range of cascade inlet and outlet flow angles are also plotted. They are obtained
PIOTR LAMPART
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Compressor Tip Leakage Mechanisms
Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, 2023 Abstract The over tip leakage flow in an unshrouded compressor blade row is highly three-dimensional, yet in order for aerodynamicists to analyse and improve designs they must be able to simplify the problem down to a limited number of mechanisms. In this paper the behaviours of the dominant loss mechanisms are investigated using a multi-
Taylor, James V +2 more
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Influence of grooved rib tip structure on tip loss and heat transfer in a gas turbine blade
Frontiers 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
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Understanding of tip clearance flow structure in high speed mixed flow compressor
Propulsion 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
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Influence of Blade Lean on Performance and Shock Wave/Tip Leakage Flow Interaction in a Transonic Compressor Rotor [PDF]
Journal 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
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Nihon Kikai Gakkai ronbunshu, 2023 Using a high-speed multistage scale model compressor simulating a middle stage of a gas turbine compressor for power generation, the effects of 3 types of rotor tip clearances on performance and operating range, and the vortex structure of rotor tip ...
Ryosuke SEKI
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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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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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