Numerical investigation of positive dihedral application conditions in compressor cascades
This study attempts to make a contribution to the understanding of dihedral application conditions and their aerodynamic mechanisms. The present efforts have finished contrastive investigations on several dihedral blades to their corresponding straight ones with different geometric or aerodynamic co...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2015-06-01
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| Series: | Propulsion and Power Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212540X15000358 |
| _version_ | 1797711920345645056 |
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| author | Detang Zeng Meiyuan Li Yongjun Zhang Chunqing Tan |
| author_facet | Detang Zeng Meiyuan Li Yongjun Zhang Chunqing Tan |
| author_sort | Detang Zeng |
| collection | DOAJ |
| description | This study attempts to make a contribution to the understanding of dihedral application conditions and their aerodynamic mechanisms. The present efforts have finished contrastive investigations on several dihedral blades to their corresponding straight ones with different geometric or aerodynamic conditions including aspect ratio, solidity, aerofoil turning angle, inlet boundary layer configuration and inlet Mach number. A dihedral with the angle between the suction side and the endwall to be obtuse, i.e., positive dihedral, is chosen. The result reveals the dihedral application conditions consist of aerofoil turning angle, inlet boundary layer, inlet Mach number and so on. The further analysis indicates: in a transonic cascade, two considerations are needed on the contrastive relationship between intensities of the two shocks, namely detached shock and passage shock, and the interaction of the shocks with the corner separation. |
| first_indexed | 2024-03-12T07:14:06Z |
| format | Article |
| id | doaj.art-579d45e806c241f9bf35a85a0c544d1a |
| institution | Directory Open Access Journal |
| issn | 2212-540X |
| language | English |
| last_indexed | 2024-03-12T07:14:06Z |
| publishDate | 2015-06-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Propulsion and Power Research |
| spelling | doaj.art-579d45e806c241f9bf35a85a0c544d1a2023-09-02T22:55:27ZengKeAi Communications Co., Ltd.Propulsion and Power Research2212-540X2015-06-01429110410.1016/j.jppr.2015.05.005Numerical investigation of positive dihedral application conditions in compressor cascadesDetang ZengMeiyuan LiYongjun ZhangChunqing TanThis study attempts to make a contribution to the understanding of dihedral application conditions and their aerodynamic mechanisms. The present efforts have finished contrastive investigations on several dihedral blades to their corresponding straight ones with different geometric or aerodynamic conditions including aspect ratio, solidity, aerofoil turning angle, inlet boundary layer configuration and inlet Mach number. A dihedral with the angle between the suction side and the endwall to be obtuse, i.e., positive dihedral, is chosen. The result reveals the dihedral application conditions consist of aerofoil turning angle, inlet boundary layer, inlet Mach number and so on. The further analysis indicates: in a transonic cascade, two considerations are needed on the contrastive relationship between intensities of the two shocks, namely detached shock and passage shock, and the interaction of the shocks with the corner separation.http://www.sciencedirect.com/science/article/pii/S2212540X15000358DihedralApplication conditionsCompressor cascadesNumerical investigationAerodynamic performance |
| spellingShingle | Detang Zeng Meiyuan Li Yongjun Zhang Chunqing Tan Numerical investigation of positive dihedral application conditions in compressor cascades Propulsion and Power Research Dihedral Application conditions Compressor cascades Numerical investigation Aerodynamic performance |
| title | Numerical investigation of positive dihedral application conditions in compressor cascades |
| title_full | Numerical investigation of positive dihedral application conditions in compressor cascades |
| title_fullStr | Numerical investigation of positive dihedral application conditions in compressor cascades |
| title_full_unstemmed | Numerical investigation of positive dihedral application conditions in compressor cascades |
| title_short | Numerical investigation of positive dihedral application conditions in compressor cascades |
| title_sort | numerical investigation of positive dihedral application conditions in compressor cascades |
| topic | Dihedral Application conditions Compressor cascades Numerical investigation Aerodynamic performance |
| url | http://www.sciencedirect.com/science/article/pii/S2212540X15000358 |
| work_keys_str_mv | AT detangzeng numericalinvestigationofpositivedihedralapplicationconditionsincompressorcascades AT meiyuanli numericalinvestigationofpositivedihedralapplicationconditionsincompressorcascades AT yongjunzhang numericalinvestigationofpositivedihedralapplicationconditionsincompressorcascades AT chunqingtan numericalinvestigationofpositivedihedralapplicationconditionsincompressorcascades |