Results 31 to 40 of about 2,271 (286)

Effects of Tip Leakage Flow on the Aerodynamic Performance and Stability of an Axial-Flow Transonic Compressor Stage

open access: yesEnergies, 2021
To explain the effect of tip leakage flow on the performance of an axial-flow transonic compressor, the compressors with different rotor tip clearances were studied numerically. The results show that as the rotor tip clearance increases, the leakage flow
Botao Zhang   +3 more
doaj   +1 more source

An Optimization Study of Circumferential Groove Casing Treatment in a High-Speed Axial Flow Compressor

open access: yesAerospace
In this paper, a numerical optimization study of single-groove casing treatment was conducted on a high-speed axial compressor. One of the aims is to find the optimal structure of a single groove that can improve compressor stability with minimal loss in
Wenhao Liu   +3 more
doaj   +1 more source

Active Flow Control in an Axial Compressor: Effect of the Injection Angle [PDF]

open access: yes, 2022
This Thesis work has dealt with the problem of Rotating Stall in axial flow compressor. Particularly, the work was focused on active control to delay Rotating Stall appearance; this was performed by means of air injectors placed on the compressor's ...
Gatti, Giacomo
core  

Performance enhancement of an axial flow compressor using active flow control technique

open access: yesCogent Engineering
This research article focuses on improving the efficiency of an axial flow compressor stage, enhancing the stall margin, and optimizing flow parameters.
Prithesh Pinto, Srinivas G
doaj   +1 more source

Improvement of Moderately Loaded Transonic Axial Compressor Performance Using Low Porosity Bend Skewed Casing Treatment

open access: yesInternational Journal of Rotating Machinery, 2014
This paper presents experimental results of a single stage transonic axial flow compressor coupled with low porosity bend skewed casing treatment. The casing treatment has a plenum chamber above the bend slots.
Dilipkumar Bhanudasji Alone   +6 more
doaj   +1 more source

Axial transonic compressor performance enhancement with circumferential grooves [PDF]

open access: yesMechanical Sciences, 2020
Casing treatment has been broadly used as a prudent passive flow control technique to improve the stall margin with a small drop in efficiency. The effect of grooves in certain details is overlooked however, different grooves shape (angels and location ...
N. Ahmad   +5 more
doaj   +1 more source

Numerical Investigation of the Influence of Axial Overlap of Blade Angle Slots on an Axial Flow Compressor Stability

open access: yesJournal of Applied Fluid Mechanics, 2020
In this paper, a numerical investigation was conducted on a subsonic compressor rotor with blade angle slot casing treatments. The purpose of the investigation is to reveal the influence of axial overlap of blade angle slot on the compressor stability ...
H. Zhang   +5 more
doaj  

Effect of Partial Span Aspiration on the Performance of a Transonic Axial Compressor Rotor: A Numerical Study

open access: yesInternational Journal of Rotating Machinery, 2015
Aspiration in an axial compressor is normally regarded as sucking out the low momentum boundary layer from blade suction surface, thus lowering the chances of flow separation and consequently that of stall under off-design operation. However, the suction
Vijaykumar Jain   +2 more
doaj   +1 more source

Stall margin improvement in a low-speed axial compressor rotor using a blockage-optimised single circumferential casing groove

open access: yes, 2020
The stall margin of tip-critical axial compressors can be improved by using circumferential casing grooves. From previous studies, in the literature, the stall margin improvement due to the casing grooves can be attributed to the reduction of the near ...
Vasudevan Kanjirakkad (4463632)   +1 more
core   +2 more sources

Design Optimization of a Dual-Bleeding Recirculation Channel to Enhance Operating Stability of a Transonic Axial Compressor

open access: yesEnergies, 2021
The present work performed a comprehensive investigation to find the effects of a dual-bleeding port recirculation channel on the aerodynamic performance of a single-stage transonic axial compressor, NASA Stage 37, and optimized the channel’s ...
Tien-Dung Vuong, Kwang-Yong Kim
doaj   +1 more source

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