Axial compressor blades tip leakage flow control using natural aspiration
Abstract Blades tip leakage flow structure in axial compressors has dominant effects on flow stability and losses. Accordingly, in the present study, three different ideas are introduced for alleviation of undesirable effects of the blades tip leakage flow. These ideas utilize circumferential tape,...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-12-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-49391-9 |
| _version_ | 1797377079015112704 |
|---|---|
| author | Peyman Ghashghaie Nejad Reza Taghavi Zenouz |
| author_facet | Peyman Ghashghaie Nejad Reza Taghavi Zenouz |
| author_sort | Peyman Ghashghaie Nejad |
| collection | DOAJ |
| description | Abstract Blades tip leakage flow structure in axial compressors has dominant effects on flow stability and losses. Accordingly, in the present study, three different ideas are introduced for alleviation of undesirable effects of the blades tip leakage flow. These ideas utilize circumferential tape, S-shape nozzle and natural aspiration slot, all imposed upstream the rotor blades row. The method of investigation is based on numerical simulation of the governing flow field. Results, in terms of the flow field structure and performance curves are compared with those of the untreated case. Final results, showed that the natural aspiration idea works better than the other ones. In comparison to the plane case, it is accompanied by augmentation of 3.5% in the total pressure ratio and 3% in the surge margin. It was also found that the mass flow rate passing through the blades row tip gap has increased by 2.33 g/s in the natural aspiration case. |
| first_indexed | 2024-03-08T19:48:49Z |
| format | Article |
| id | doaj.art-e32c62de57d94bd9b4d85d13c3cadb7c |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-08T19:48:49Z |
| publishDate | 2023-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-e32c62de57d94bd9b4d85d13c3cadb7c2023-12-24T12:14:19ZengNature PortfolioScientific Reports2045-23222023-12-0113111110.1038/s41598-023-49391-9Axial compressor blades tip leakage flow control using natural aspirationPeyman Ghashghaie Nejad0Reza Taghavi Zenouz1School of Mechanical Engineering, Iran University of Science and Technology (IUST)School of Mechanical Engineering, Iran University of Science and Technology (IUST)Abstract Blades tip leakage flow structure in axial compressors has dominant effects on flow stability and losses. Accordingly, in the present study, three different ideas are introduced for alleviation of undesirable effects of the blades tip leakage flow. These ideas utilize circumferential tape, S-shape nozzle and natural aspiration slot, all imposed upstream the rotor blades row. The method of investigation is based on numerical simulation of the governing flow field. Results, in terms of the flow field structure and performance curves are compared with those of the untreated case. Final results, showed that the natural aspiration idea works better than the other ones. In comparison to the plane case, it is accompanied by augmentation of 3.5% in the total pressure ratio and 3% in the surge margin. It was also found that the mass flow rate passing through the blades row tip gap has increased by 2.33 g/s in the natural aspiration case.https://doi.org/10.1038/s41598-023-49391-9 |
| spellingShingle | Peyman Ghashghaie Nejad Reza Taghavi Zenouz Axial compressor blades tip leakage flow control using natural aspiration Scientific Reports |
| title | Axial compressor blades tip leakage flow control using natural aspiration |
| title_full | Axial compressor blades tip leakage flow control using natural aspiration |
| title_fullStr | Axial compressor blades tip leakage flow control using natural aspiration |
| title_full_unstemmed | Axial compressor blades tip leakage flow control using natural aspiration |
| title_short | Axial compressor blades tip leakage flow control using natural aspiration |
| title_sort | axial compressor blades tip leakage flow control using natural aspiration |
| url | https://doi.org/10.1038/s41598-023-49391-9 |
| work_keys_str_mv | AT peymanghashghaienejad axialcompressorbladestipleakageflowcontrolusingnaturalaspiration AT rezataghavizenouz axialcompressorbladestipleakageflowcontrolusingnaturalaspiration |