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Simulation of Casing Treatments of a Transonic Compressor Stage
Joint Authors
Kau, H.-P.
Hembera, M.
Johann, E.
Source
International Journal of Rotating Machinery
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-12-10
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
This article presents the study of casing treatments on an axial compressor stage for improving stability and enhancing stall margin.
So far, many simulations of casing treatments on single rotor or rotor-stator configurations were performed.
But as the application of casing treatments in engines will be in a multistage compressor, in this study, the axial slots are applied to a typical transonic first stage of a high-pressure 4.5-stage compressor including an upstream IGV, rotor, and stator.
The unsteady simulations are performed with a three-dimensional time accurate Favre-averaged Navier-stokes flow solver.
In order to resolve all important flow mechanisms appearing through the use of casing treatments, a computational multiblock grid consisting of approximately 2.4 million nodes was used for the simulations.
The configurations include axial slots in 4 different variations with an axial extension ranging into the blade passage of the IGV.
Their shape is semicircular with no inclination in circumferential direction.
The simulations proved the effectiveness of casing treatments with an upstream stator.
However, the results also showed that the slots have to be carefully positioned relative to the stator location.
American Psychological Association (APA)
Hembera, M.& Kau, H.-P.& Johann, E.. 2008. Simulation of Casing Treatments of a Transonic Compressor Stage. International Journal of Rotating Machinery،Vol. 2008, no. 2008, pp.1-10.
https://search.emarefa.net/detail/BIM-488776
Modern Language Association (MLA)
Hembera, M.…[et al.]. Simulation of Casing Treatments of a Transonic Compressor Stage. International Journal of Rotating Machinery No. 2008 (2008), pp.1-10.
https://search.emarefa.net/detail/BIM-488776
American Medical Association (AMA)
Hembera, M.& Kau, H.-P.& Johann, E.. Simulation of Casing Treatments of a Transonic Compressor Stage. International Journal of Rotating Machinery. 2008. Vol. 2008, no. 2008, pp.1-10.
https://search.emarefa.net/detail/BIM-488776
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-488776