A Novel Approach to Evaluate the Benefits of Casing Treatment in Axial Compressors
Passive control devices based on casing treatments have already shown their capability to improve the flow stability in axial compressors. However, their optimization remains complex due to a partial understanding of the related physical mechanisms. In order to quantitatively assess the interaction...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/2012/975407 |
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| _version_ | 1850164576154288128 |
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| author | Guillaume Legras Isabelle Trébinjac Nicolas Gourdain Xavier Ottavy Lionel Castillon |
| author_facet | Guillaume Legras Isabelle Trébinjac Nicolas Gourdain Xavier Ottavy Lionel Castillon |
| author_sort | Guillaume Legras |
| collection | DOAJ |
| description | Passive control devices based on casing treatments have already shown their capability to improve the flow stability in axial compressors. However, their optimization remains complex due to a partial understanding of the related physical mechanisms. In order to quantitatively assess the interaction between slots and the blade tip flow, the present paper develops a novel analysis methodology based on a control-volume approach located in the rotor tip region. This methodology may be used for analyzing the casing treatment based on both axi- and non-axisymmetric slots design. The second issue of the paper focuses on the application of the current approach to better understand the effects of axi- and non-axisymmetric grooves in three different axial compressors which differ by the flow regime (subsonic/transonic) and the smooth casing shape (cylindrical/concave). Numerical simulations are performed, and results of the current approach with and without casing treatments are compared. |
| format | Article |
| id | doaj-art-ea374865eb4c4de282c802fffcb8efbf |
| institution | OA Journals |
| issn | 1023-621X 1542-3034 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-ea374865eb4c4de282c802fffcb8efbf2025-08-20T02:21:57ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342012-01-01201210.1155/2012/975407975407A Novel Approach to Evaluate the Benefits of Casing Treatment in Axial CompressorsGuillaume Legras0Isabelle Trébinjac1Nicolas Gourdain2Xavier Ottavy3Lionel Castillon4LMFA, UMR 5509, Ecole Centrale de Lyon, UCB Lyon I and INSA, 69134 Ecully, FranceLMFA, UMR 5509, Ecole Centrale de Lyon, UCB Lyon I and INSA, 69134 Ecully, FranceCERFACS, Computational Fluid Dynamics Team, 42 Avenue Gaspard Coriolis, 31057 Toulouse, FranceLMFA, UMR 5509, Ecole Centrale de Lyon, UCB Lyon I and INSA, 69134 Ecully, FranceONERA, Applied Aerodynamics Department, 8 Rue des Vertugadins, 92190 Meudon, FrancePassive control devices based on casing treatments have already shown their capability to improve the flow stability in axial compressors. However, their optimization remains complex due to a partial understanding of the related physical mechanisms. In order to quantitatively assess the interaction between slots and the blade tip flow, the present paper develops a novel analysis methodology based on a control-volume approach located in the rotor tip region. This methodology may be used for analyzing the casing treatment based on both axi- and non-axisymmetric slots design. The second issue of the paper focuses on the application of the current approach to better understand the effects of axi- and non-axisymmetric grooves in three different axial compressors which differ by the flow regime (subsonic/transonic) and the smooth casing shape (cylindrical/concave). Numerical simulations are performed, and results of the current approach with and without casing treatments are compared.http://dx.doi.org/10.1155/2012/975407 |
| spellingShingle | Guillaume Legras Isabelle Trébinjac Nicolas Gourdain Xavier Ottavy Lionel Castillon A Novel Approach to Evaluate the Benefits of Casing Treatment in Axial Compressors International Journal of Rotating Machinery |
| title | A Novel Approach to Evaluate the Benefits of Casing Treatment in Axial Compressors |
| title_full | A Novel Approach to Evaluate the Benefits of Casing Treatment in Axial Compressors |
| title_fullStr | A Novel Approach to Evaluate the Benefits of Casing Treatment in Axial Compressors |
| title_full_unstemmed | A Novel Approach to Evaluate the Benefits of Casing Treatment in Axial Compressors |
| title_short | A Novel Approach to Evaluate the Benefits of Casing Treatment in Axial Compressors |
| title_sort | novel approach to evaluate the benefits of casing treatment in axial compressors |
| url | http://dx.doi.org/10.1155/2012/975407 |
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