Control of Corner Separation in Compressor Cascade Using Biomimetic Fish Scales Structure
In this study, a fish scale structure with low viscous drag was proposed and applied to the suction surface of a compressor cascade to reduce total pressure loss and suppress corner separation, a key source of compressor inefficiency. By using CFD simulations, the biomimetic structure was identified...
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MDPI AG
2024-12-01
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| Series: | Biomimetics |
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| Online Access: | https://www.mdpi.com/2313-7673/9/12/746 |
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| author | Jin-Long Shen Szu-I Yeh |
| author_facet | Jin-Long Shen Szu-I Yeh |
| author_sort | Jin-Long Shen |
| collection | DOAJ |
| description | In this study, a fish scale structure with low viscous drag was proposed and applied to the suction surface of a compressor cascade to reduce total pressure loss and suppress corner separation, a key source of compressor inefficiency. By using CFD simulations, the biomimetic structure was identified and integrated into the cascade design. To evaluate its effects, we analyzed secondary flow structures using 2D projected streamlines, axial velocity density (AVD), and vortex visualization techniques. The results show that the fish scale structure effectively reduces the volume of low-energy fluid by 18.36% and decreases total pressure loss at the outlet by 3.5%. Additionally, the AVD iso-surface proved instrumental in identifying low-energy fluid regions, which correlate closely with total pressure loss distribution. These findings highlight the potential of biomimetic-inspired designs to improve compressor performance by mitigating corner separation and reducing flow losses. |
| format | Article |
| id | doaj-art-61fe11a7a53b43da8d86105c3e3ad3b0 |
| institution | Kabale University |
| issn | 2313-7673 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Biomimetics |
| spelling | doaj-art-61fe11a7a53b43da8d86105c3e3ad3b02024-12-27T14:13:26ZengMDPI AGBiomimetics2313-76732024-12-0191274610.3390/biomimetics9120746Control of Corner Separation in Compressor Cascade Using Biomimetic Fish Scales StructureJin-Long Shen0Szu-I Yeh1Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, TaiwanDepartment of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, TaiwanIn this study, a fish scale structure with low viscous drag was proposed and applied to the suction surface of a compressor cascade to reduce total pressure loss and suppress corner separation, a key source of compressor inefficiency. By using CFD simulations, the biomimetic structure was identified and integrated into the cascade design. To evaluate its effects, we analyzed secondary flow structures using 2D projected streamlines, axial velocity density (AVD), and vortex visualization techniques. The results show that the fish scale structure effectively reduces the volume of low-energy fluid by 18.36% and decreases total pressure loss at the outlet by 3.5%. Additionally, the AVD iso-surface proved instrumental in identifying low-energy fluid regions, which correlate closely with total pressure loss distribution. These findings highlight the potential of biomimetic-inspired designs to improve compressor performance by mitigating corner separation and reducing flow losses.https://www.mdpi.com/2313-7673/9/12/746compressor cascadefish scale cascadevortex structurenumerical simulationtotal pressure loss |
| spellingShingle | Jin-Long Shen Szu-I Yeh Control of Corner Separation in Compressor Cascade Using Biomimetic Fish Scales Structure Biomimetics compressor cascade fish scale cascade vortex structure numerical simulation total pressure loss |
| title | Control of Corner Separation in Compressor Cascade Using Biomimetic Fish Scales Structure |
| title_full | Control of Corner Separation in Compressor Cascade Using Biomimetic Fish Scales Structure |
| title_fullStr | Control of Corner Separation in Compressor Cascade Using Biomimetic Fish Scales Structure |
| title_full_unstemmed | Control of Corner Separation in Compressor Cascade Using Biomimetic Fish Scales Structure |
| title_short | Control of Corner Separation in Compressor Cascade Using Biomimetic Fish Scales Structure |
| title_sort | control of corner separation in compressor cascade using biomimetic fish scales structure |
| topic | compressor cascade fish scale cascade vortex structure numerical simulation total pressure loss |
| url | https://www.mdpi.com/2313-7673/9/12/746 |
| work_keys_str_mv | AT jinlongshen controlofcornerseparationincompressorcascadeusingbiomimeticfishscalesstructure AT szuiyeh controlofcornerseparationincompressorcascadeusingbiomimeticfishscalesstructure |