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Instrumentation Strategies for Monitoring Flow in Centrifugal Compressor Diffusers: Techniques and Case Studies. [PDF]
Sensors (Basel)Prisăcariu EG, Dumitrescu O.
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International Journal of Turbo & Jet-Engines, 2023
Abstract In variable geometry turbine vanes, tip clearance height and shape vary with the rotation of the vane, which affect the aerodynamic performance significantly. However, these issues are rarely considered in published studies. The current paper investigated the flow field features of transonic variable geometry turbine vanes with ...
Yueqi Liu, Shaowen Chen, Songtao Wang
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Abstract In variable geometry turbine vanes, tip clearance height and shape vary with the rotation of the vane, which affect the aerodynamic performance significantly. However, these issues are rarely considered in published studies. The current paper investigated the flow field features of transonic variable geometry turbine vanes with ...
Yueqi Liu, Shaowen Chen, Songtao Wang
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Non-Uniform Tip Clearance Effects on Turbocharger Compressor Performance
Volume 2B: Turbomachinery, 2018In most turbocharger compressors, diffusers a re designed with contractions along the passage mainly for delaying surge. The width ratio parameter, B, which defines the diffuser inlet width to diameter ratio significantly affects the losses in the diffuser. Changes to tip clearance, for example, due to the impeller rubbing the shroud casing changes the
Richard A. Adjei +4 more
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Journal of Visualization, 2020
In order to better understand the flow characteristics of mixed-flow pump with non-uniform tip clearance, a test rig is established and the flow fields of various cross section in impeller are studied based on particle image velocimetry technology. The velocity vector distributions of three cross sections, e.g., impeller blade inlet, middle and outlet,
Wei Li +4 more
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In order to better understand the flow characteristics of mixed-flow pump with non-uniform tip clearance, a test rig is established and the flow fields of various cross section in impeller are studied based on particle image velocimetry technology. The velocity vector distributions of three cross sections, e.g., impeller blade inlet, middle and outlet,
Wei Li +4 more
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Effect of circumferential non-uniform tip clearance on the flow in a transonic compressor
Physics of FluidsIn order to clarify the influence of circumferential non-uniform tip clearance (CNTC) on the flow, this paper studies the tip clearance structures with different minimum clearance sizes and distribution forms while ensuring the consistency of the average tip clearance size.
Jingquan Xu +4 more
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Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2022
In this paper, the single-stage compressor with circumferential non-uniform tip clearance is experimentally investigated under 180° total pressure distortion for the compressor characteristics and the dynamic stall process. In the special structure of the circumferential non-uniform tip clearance, different circumferential distortion areas are adopted
Haoyang Xu, Jun Hu
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In this paper, the single-stage compressor with circumferential non-uniform tip clearance is experimentally investigated under 180° total pressure distortion for the compressor characteristics and the dynamic stall process. In the special structure of the circumferential non-uniform tip clearance, different circumferential distortion areas are adopted
Haoyang Xu, Jun Hu
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Volume 7: Fluids Engineering, 2016
In the unshrouded axial turbine, the tip clearances can result in the loss of turbine efficiency and the penalty of turbine performance. Therefore, investigating the blade tip geometry of improving the turbine performance has a great significance. This paper is to study the effects of non-uniform tip clearance on the flow field in a turbine cascade ...
Hongwei Ma, Yangtao Tian
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In the unshrouded axial turbine, the tip clearances can result in the loss of turbine efficiency and the penalty of turbine performance. Therefore, investigating the blade tip geometry of improving the turbine performance has a great significance. This paper is to study the effects of non-uniform tip clearance on the flow field in a turbine cascade ...
Hongwei Ma, Yangtao Tian
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