Effects of blade rotation on axial turbine tip leakage vortex breakdown and loss
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DOI: 10.1177/0954410016656879
Abstract: The tip leakage vortex breakdown occurs under a few conditions in modern turbines, which leads to extra vortex breakdown losses, but the mechanisms of vortex breakdown and its influencing factors still remain unclear. This paper… read more here.
Keywords: tip leakage; blade rotation; leakage vortex; vortex breakdown ... See more keywords
One-dimensional modeling for tip clearance leakage vortex trajectory and stall-onset prediction in subsonic centrifugal impellers
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DOI: 10.1177/0957650919856737
Abstract: Two one-dimensional models are established for the tip leakage vortex trajectory and rotating stall-onset point prediction respectively for subsonic centrifugal impellers. The goal of modeling is to supply an effective estimation strategy of the stall-onset… read more here.
Keywords: leakage; one dimensional; model; vortex trajectory ... See more keywords
Experimental and numerical investigation of tip leakage vortex cavitation in an axial flow pump under design and off-design conditions
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DOI: 10.1177/0957650920906295
Abstract: The interaction of tip leakage flow and main flow in an axial flow pump can induce the tip leakage vortex, which causes the unstable flow and complex cavitation structures. In the present research, the modified… read more here.
Keywords: tip leakage; cavitation; leakage vortex; design ... See more keywords
Numerical investigation into the mechanism regarding the inception and evolution of flow unsteadiness induced by the tip leakage flow in a transonic compressor
Sign Up to like & getrecommendations! Published in 2020 at "Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy"
DOI: 10.1177/0957650920910597
Abstract: Unsteady flow in the blade tip region of modern axial flow compressors is one of the sources of loss, noise, and blade vibration. In some cases, it is potentially linked to stall inception. In this… read more here.
Keywords: tip leakage; induced tip; flow unsteadiness; leakage vortex ... See more keywords
Influence of Shock Wave on Loss and Breakdown of Tip-Leakage Vortex in Turbine Rotor with Varying Backpressure
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DOI: 10.3390/app11114991
Abstract: In modern turbine rotors, tip-leakage flow is a common phenomenon that accounts for about 1/3 of the stage loss. Studies show that as the imposed load increases, a shock wave appears in the tip region,… read more here.
Keywords: shock wave; loss; leakage; leakage vortex ... See more keywords