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High Throughflow StreamVane Swirl Distortion Generators: Design and Analysis
Journal of Engineering for Gas Turbines and Power, 2023Abstract In recent years, the StreamVane technology has developed into a mature and streamlined process that can reproduce swirl distortion for ground-test evaluation of fan and compressor performance and durability. A StreamVane device consists of complex turning vanes that accurately output a distorted secondary velocity field at a ...
Andrew P. Hayden +4 more
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Computational Inlet Swirl Distortion Investigation of a High-Speed Compressor
AIAA Scitech 2021 Forum, 2021Aero gas turbine engines are commonly supplied with straight-flowing air into the compressor, but recent high-efficiency aircraft configurations, such as Boundary Layer Ingestion (BLI), distort the flow of air into the engine. BLI turns the flowing air, causing flow angularity or swirl distortion.
Acton, Marcus J. +2 more
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Aerodynamic performance in a boundary layer ingesting fan with swirl distortion
Aerospace Science and TechnologyMingmin Zhu +2 more
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Quantification of Swirl Distortions Caused by S-shape Inlet Ducts
Proceedings of Global Power & Propulsion Society, 2022The S-shape inlet is generally the main reason for the occurrence of swirl inlet distortion that is seriously concerned by the manufactures of fighters. The non-uniform inlet combined with large-scale bulk swirl, small-scale tight-wound swirl, or both of them may greatly impact the performance of aero-engines.
Zhenyu LI +3 more
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Journal of Fluids Engineering, Transactions of the ASME, 2018 Swirl inlet distortion is usually encountered in modern flight vehicles since their inlet ducts usually consist of one or two bends, such as S-inlet duct.
Xiaofeng Sun, Xingmin Gui
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The impact of the combined total pressure-swirl distortion on a transonic compressor rotor
Aerospace Science and TechnologyQuanyong Xu
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Numerical Simulation on the Vortex Shedding From Airfoils of a Swirl Distortion Generator
Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, 2021Abstract The StreamVane™ swirl distortion generator, developed by Virginia Tech, can efficiently reproduce the boundary layer of an airframe or duct found in boundary layer ingesting (BLI) aircraft. Due to manufacturing limitations, the vanes within StreamVanes induce unsteady, vortical wakes, commonly known as a von Karman vortex street.
Andrew Hayden +4 more
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Volume 2: Aircraft Engine; Coal, Biomass and Alternative Fuels; Cycle Innovations, 2013
Aircraft auxiliary power unit (APU) compressors experience a wide range of total pressure and swirl distortion levels as a result of the APU inlet geometry and different flight conditions and wind directions. Compressors are designed to operate with certain levels of distortion while avoiding surge and stall and maintaining acceptable stress levels ...
Gundeti Lavan Kumar +3 more
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Aircraft auxiliary power unit (APU) compressors experience a wide range of total pressure and swirl distortion levels as a result of the APU inlet geometry and different flight conditions and wind directions. Compressors are designed to operate with certain levels of distortion while avoiding surge and stall and maintaining acceptable stress levels ...
Gundeti Lavan Kumar +3 more
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Journal of Engineering for Gas Turbines and Power, 2013
Nonuniform combustor outlet flows have been demonstrated to have significant impact on the first and second stage turbine aerothermal performance. Rich-burn combustors, which generally have pronounced temperature profiles and weak swirl profiles, primarily affect the heat load in the vane but both the heat load and aerodynamics of the rotor.
Benjamin F. Hall +2 more
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Nonuniform combustor outlet flows have been demonstrated to have significant impact on the first and second stage turbine aerothermal performance. Rich-burn combustors, which generally have pronounced temperature profiles and weak swirl profiles, primarily affect the heat load in the vane but both the heat load and aerodynamics of the rotor.
Benjamin F. Hall +2 more
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A Methodology for Assessing Inlet Swirl Distortion
2017<div class="section abstract"> <div class="htmlview paragraph">This Aerospace Information Report (AIR) addresses the subject of aircraft inlet-swirl distortion. A structured methodology for characterizing steady-state swirl distortion in terms of swirl descriptors and for correlating the swirl descriptors with loss in stability pressure ...
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