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International Journal of Turbomachinery, Propulsion and Power
Article . 2022 . Peer-reviewed
License: CC BY
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Stall Margin Improvement in an Axial Compressor by Continuous and Pulsed Tip Injection

Authors: Joseph Moubogha Moubogha; Gabriel Margalida; Pierric Joseph; Olivier Roussette; Antoine Dazin;

Stall Margin Improvement in an Axial Compressor by Continuous and Pulsed Tip Injection

Abstract

Stall and surge are strong limitations in the operating range of compressors and thus one of the major limits of jet engine performance. A promising way to push the stability limit of compression machines is to inject a small amount of flow at the blade tip to alter the physical mechanism responsible for stall onset. This study focuses on the experimental performance of such a system. To do so, an axial compressor test bench was equipped with 40 actuators connected to an auxiliary pressurised air supply system. They were able to generate high-speed jet blowing just at the tip of the rotor blades. The opening of each actuator was controlled by an electromagnetic valve. This allowed generating continuous or pulsed jets with frequencies up to 500 Hz at different duty cycles. The performance of the control system was investigated for various control strategies, where the injected flow rate, the injection angle, the number of injectors, the jet frequency and the duty cycle were systematically varied. This paper is concluded by a study of the energy balance of the system for various configurations. To the best of the authors’ knowledge, this constitutes a rarely seen analysis in the literature.

Country
France
Keywords

Energy cost, Stall margin improvement, Sciences de l'ingénieur: Mécanique: Mécanique des fluides, Mechanical Engineering, axial compressor, Energy Engineering and Power Technology, Aerospace Engineering, Axial compressor, [SPI.MECA.MEFL] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph], stall margin improvement, tip blowing, active flow control, energy cost, axial compressor; active flow control; stall margin improvement; tip blowing; energy cost, TJ1-1570, Active flow control, Tip blowing, Mechanical engineering and machinery

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
OpenAIRE UsageCountsViews provided by UsageCounts
downloads
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5
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