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   Articles with "stall" as a keyword



Vision‐assisted deep stall landing for a fixed‐wing UAV

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recommendations! Published in 2022 at "Journal of Field Robotics"

DOI: 10.1002/rob.22100

Abstract: This paper reports a guidance and control method for vision‐assisted deep stall landing for a fixed‐wing unmanned aerial vehicle (UAV). With a deep stall maneuver, a fixed‐wing UAV can land on a confined area with… read more here.

Keywords: stall; vision assisted; deep stall; assisted deep ... See more keywords
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Study of Reynolds number effects on the aerodynamics of a moderately thick airfoil using a high-pressure wind tunnel

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recommendations! Published in 2021 at "Experiments in Fluids"

DOI: 10.1007/s00348-021-03267-8

Abstract: Reynolds number effects on the aerodynamics of the moderately thick NACA 0021 airfoil were experimentally studied by means of surface-pressure measurements. The use of a high-pressure wind tunnel allowed for variation of the chord Reynolds… read more here.

Keywords: stall; reynolds number; number effects; number ... See more keywords

Experimental Investigation on the Development Process of Large-Scale Low-Speed Stall Disturbance in Contra-Rotating Compressor

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recommendations! Published in 2020 at "Journal of Thermal Science"

DOI: 10.1007/s11630-020-1341-z

Abstract: In order to better understand the stall process of a contra-rotating compressor, the detailed characteristic and multi-channel unsteady pressure signals have been achieved by a special layout of high-frequency response pressure sensors. The array consists… read more here.

Keywords: compressor; stall; speed; process ... See more keywords
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Surrogate-based aerodynamic shape optimization for delaying airfoil dynamic stall using Kriging regression and infill criteria

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recommendations! Published in 2021 at "Aerospace Science and Technology"

DOI: 10.1016/j.ast.2021.106555

Abstract: Abstract The dynamic stall phenomenon is characterized by the formation of a leading-edge vortex, which is responsible for adverse aerodynamic forces and moments adversely impacting the structural strength and life of a system. Aerodynamic shape… read more here.

Keywords: optimization; dynamic stall; model; stall ... See more keywords

Effects of the radial blade loading distribution and B parameter on the type of flow instability in a low-speed axial compressor

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recommendations! Published in 2018 at "Chinese Journal of Aeronautics"

DOI: 10.1016/j.cja.2018.05.003

Abstract: Abstract Previous studies showed that an axisymmetric hub-initiated disturbance defined as partial surge may initiate the stall of a transonic compressor; to reveal the instability evolution under full-span incompressible flow for different levels of hub… read more here.

Keywords: compressor; stall; hub; parameter ... See more keywords
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Aerodynamic performance improvements of a vertical axis wind turbine by leading-edge protuberance

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recommendations! Published in 2021 at "Journal of Wind Engineering and Industrial Aerodynamics"

DOI: 10.1016/j.jweia.2021.104535

Abstract: Abstract A detailed numerical study has been carried out to investigate the effects of leadingedge protuberance as a novel flow-separation control-technique for vertical-axis-windturbine (VAWT). The aerodynamic performance of a stationary protuberanced blade and an associated… read more here.

Keywords: aerodynamic performance; leading edge; edge; stall ... See more keywords

Numerical study on flow stall and kinetic energy conversion of low-specific-speed centrifugal pump

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recommendations! Published in 2023 at "Physics of Fluids"

DOI: 10.1063/5.0143316

Abstract: Stall is a common phenomenon in centrifugal pumps under low-flow conditions; it has a significant impact on fatigue and can even damage mechanical structural components. Computational fluid dynamics was used to perform high-precision numerical calculations… read more here.

Keywords: stall; centrifugal pump; energy; kinetic energy ... See more keywords

Wing design optimization and stall analysis with Co-flow Jet active control

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recommendations! Published in 2024 at "Physics of Fluids"

DOI: 10.1063/5.0197991

Abstract: Coupled with Co-flow Jet (CFJ) technology, the Non-dominated Sorting Genetic Algorithm II was utilized for the multi-objective combination optimization of an optimized Co-flow Jet wing, based on National Advisory Committee for Aeronautics (NACA) 6421. A… read more here.

Keywords: control; flow jet; stall; optimization ... See more keywords

Transition of stall routes in a high-load compressor under radial distorted inflow

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recommendations! Published in 2025 at "Physics of Fluids"

DOI: 10.1063/5.0282087

Abstract: The transition of stall routes under inlet radial distortion was experimentally studied in a high-load 1.5-stage axial compressor. Under uniform inflow condition, the stall precursor of the compressor is manifested as a modal wave type… read more here.

Keywords: tip air; stall routes; tip; load ... See more keywords

Active flow suction in vaneless diffusers: A stability-enhancement strategy for centrifugal compressors

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recommendations! Published in 2025 at "Physics of Fluids"

DOI: 10.1063/5.0299173

Abstract: This study experimentally and numerically examines the influence of localized, disk-side suction applied within the vaneless diffuser of the National Aeronautics and Space Administration (NASA) Low-Speed Centrifugal Compressor (LSCC) on the inception and spatial evolution… read more here.

Keywords: vaneless; active flow; stall; strategy ... See more keywords

Machine Learning to Predict Aerodynamic Stall

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recommendations! Published in 2022 at "International Journal of Computational Fluid Dynamics"

DOI: 10.1080/10618562.2023.2171021

Abstract: A convolutional autoencoder is trained using a database of airfoil aerodynamic simulations and assessed in terms of overall accuracy and interpretability. The goal is to predict the stall and to investigate the ability of the… read more here.

Keywords: stall; aerodynamic stall; airfoil; machine learning ... See more keywords