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Tip leakage losses in a linear turbine cascade
2021An investigation of tip leakage flow and its effects on loss production was performed on a large-scale linear turbine cascade having a tip gap measuring 2.1% of the blade height. The Reynolds number based on axial chord and cascade exit velocity was 4.5x10⁵.
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The Reduction of Over Tip Leakage Loss in Unshrouded Axial Turbines Using Winglets and Squealers
Journal of Turbomachinery, 2007The possibilities of reducing the over tip leakage loss of unshrouded rotors have been investigated using a linear cascade of turbine blades and computational fluid dynamics (CFD). The large-scale blade profile is the same as that of the tip profile of a low-speed high-pressure research turbine facility.
Zbigniew Schabowski, Howard Hodson
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Journal of Turbomachinery, 2020
Abstract The prediction of tip leakage flow aerothermal loss plays a crucial role in turbine preliminary design, which strongly affects the turbine performance. A new tip leakage loss model for unshrouded turbine is developed in this paper, considering the compressible flow aerothermal process inside the clearance.
Wenqi Xu +5 more
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Abstract The prediction of tip leakage flow aerothermal loss plays a crucial role in turbine preliminary design, which strongly affects the turbine performance. A new tip leakage loss model for unshrouded turbine is developed in this paper, considering the compressible flow aerothermal process inside the clearance.
Wenqi Xu +5 more
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Over-Tip Leakage Loss for a Gutter-Type Turbine Blade Tip
Transactions of the Korean Society of Mechanical Engineers - B, 2021Seon Woo Bong, Sang Woo Lee
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Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, 2018
Tip clearance losses represent a major source of efficiency losses in turbomachinery. A novel method based on passive injection for reducing tip leakage losses in axial turbine cascades has been proposed in 2007 by Willinger and co-workers, and first experimental demonstrations of the potential of this approach were reported recently.
Maximilian Passmann +3 more
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Tip clearance losses represent a major source of efficiency losses in turbomachinery. A novel method based on passive injection for reducing tip leakage losses in axial turbine cascades has been proposed in 2007 by Willinger and co-workers, and first experimental demonstrations of the potential of this approach were reported recently.
Maximilian Passmann +3 more
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Tip Leakage Losses for the Squealer Tip Winglets Designed on the Basis of Flow Visualization
Transactions of the Korean Society of Mechanical Engineers - B, 2022Yong-Cheol Seo, Sang-Woo Lee
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Novel wave-shaped tip-shroud contours towards reducing turbine leakage loss
Energy, 2022Kai Zhou, Xinqian Zheng
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Physics of Fluids
Tip leakage loss significantly influences aerodynamic performance of high-pressure turbines, with squealer tips serving as an effective control strategy. The development of a tip leakage loss model is crucial for evaluating and predicting turbine aerodynamic performance and guiding blade tip design.
Xiaojuan He +4 more
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Tip leakage loss significantly influences aerodynamic performance of high-pressure turbines, with squealer tips serving as an effective control strategy. The development of a tip leakage loss model is crucial for evaluating and predicting turbine aerodynamic performance and guiding blade tip design.
Xiaojuan He +4 more
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Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics
Abstract The Partially Shrouded Axial-Flow Fan (PSAFF), extensively used in air conditioning and various industrial settings, exhibits a unique design wherein the shroud encompasses only a portion of the blade tips. However, there is a research gap in comprehending the tip leakage flow (TLF) behavior and developing more accurate loss ...
Jinkong Qin +5 more
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Abstract The Partially Shrouded Axial-Flow Fan (PSAFF), extensively used in air conditioning and various industrial settings, exhibits a unique design wherein the shroud encompasses only a portion of the blade tips. However, there is a research gap in comprehending the tip leakage flow (TLF) behavior and developing more accurate loss ...
Jinkong Qin +5 more
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