Parameter-Based Design and Analysis of Wind Turbine Airfoils with Conformal Slot Co-Flow Jet
A co-flow jet (CFJ), an active flow control method combining blowing and suction control, can effectively suppress the stall of airfoils. However, the streamwise jet channel along the upper surface of a conventional CFJ airfoil reduces the thickness and camber of the baseline, degrading the aerodyna...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Isfahan University of Technology
2022-11-01
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| Series: | Journal of Applied Fluid Mechanics |
| Subjects: | |
| Online Access: | https://www.jafmonline.net/article_2137_87edd33715172db977839202529d0a6b.pdf |
| _version_ | 1828294212801527808 |
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| author | C. Y. Ma H. Y. Xu |
| author_facet | C. Y. Ma H. Y. Xu |
| author_sort | C. Y. Ma |
| collection | DOAJ |
| description | A co-flow jet (CFJ), an active flow control method combining blowing and suction control, can effectively suppress the stall of airfoils. However, the streamwise jet channel along the upper surface of a conventional CFJ airfoil reduces the thickness and camber of the baseline, degrading the aerodynamic performance when the jet is inactive. The conformal slot CFJ airfoil was proposed to address this problem, but the design method is still absent. This paper proposed a general design method based on parameters including the slot angle, transition shape and distance of the injection and suction slot. The mechanism of the best parameter was analyzed. The designed conformal slot CFJ airfoil was checked under different jet intensities, and the turbine power curve was predicted when substituting CFJ airfoils for the baseline. Compared with the conventional CFJ airfoil, the designed conformal slot CFJ airfoil has three advantages: eliminating the performance loss when the jet is off, saving jet energy when suppressing the flow separation, and improving the power generation of wind turbines at low wind speeds. |
| first_indexed | 2024-04-13T11:33:41Z |
| format | Article |
| id | doaj.art-167a793605f34c06b5e9bfd4c67857a6 |
| institution | Directory Open Access Journal |
| issn | 1735-3572 1735-3645 |
| language | English |
| last_indexed | 2024-04-13T11:33:41Z |
| publishDate | 2022-11-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Applied Fluid Mechanics |
| spelling | doaj.art-167a793605f34c06b5e9bfd4c67857a62022-12-22T02:48:29ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-35721735-36452022-11-0116226928310.47176/jafm.16.02.13182137Parameter-Based Design and Analysis of Wind Turbine Airfoils with Conformal Slot Co-Flow JetC. Y. Ma0H. Y. Xu1National Key Laboratory of Science and Technology on Aerodynamic Design and Research, Northwestern Polytechnical University, Xi'an, 710072, ChinaNational Key Laboratory of Science and Technology on Aerodynamic Design and Research, Northwestern Polytechnical University, Xi'an, 710072, ChinaA co-flow jet (CFJ), an active flow control method combining blowing and suction control, can effectively suppress the stall of airfoils. However, the streamwise jet channel along the upper surface of a conventional CFJ airfoil reduces the thickness and camber of the baseline, degrading the aerodynamic performance when the jet is inactive. The conformal slot CFJ airfoil was proposed to address this problem, but the design method is still absent. This paper proposed a general design method based on parameters including the slot angle, transition shape and distance of the injection and suction slot. The mechanism of the best parameter was analyzed. The designed conformal slot CFJ airfoil was checked under different jet intensities, and the turbine power curve was predicted when substituting CFJ airfoils for the baseline. Compared with the conventional CFJ airfoil, the designed conformal slot CFJ airfoil has three advantages: eliminating the performance loss when the jet is off, saving jet energy when suppressing the flow separation, and improving the power generation of wind turbines at low wind speeds.https://www.jafmonline.net/article_2137_87edd33715172db977839202529d0a6b.pdfco-flow jetwind turbine airfoilconformal slotblowingsuctionflow control |
| spellingShingle | C. Y. Ma H. Y. Xu Parameter-Based Design and Analysis of Wind Turbine Airfoils with Conformal Slot Co-Flow Jet Journal of Applied Fluid Mechanics co-flow jet wind turbine airfoil conformal slot blowing suction flow control |
| title | Parameter-Based Design and Analysis of Wind Turbine Airfoils with Conformal Slot Co-Flow Jet |
| title_full | Parameter-Based Design and Analysis of Wind Turbine Airfoils with Conformal Slot Co-Flow Jet |
| title_fullStr | Parameter-Based Design and Analysis of Wind Turbine Airfoils with Conformal Slot Co-Flow Jet |
| title_full_unstemmed | Parameter-Based Design and Analysis of Wind Turbine Airfoils with Conformal Slot Co-Flow Jet |
| title_short | Parameter-Based Design and Analysis of Wind Turbine Airfoils with Conformal Slot Co-Flow Jet |
| title_sort | parameter based design and analysis of wind turbine airfoils with conformal slot co flow jet |
| topic | co-flow jet wind turbine airfoil conformal slot blowing suction flow control |
| url | https://www.jafmonline.net/article_2137_87edd33715172db977839202529d0a6b.pdf |
| work_keys_str_mv | AT cyma parameterbaseddesignandanalysisofwindturbineairfoilswithconformalslotcoflowjet AT hyxu parameterbaseddesignandanalysisofwindturbineairfoilswithconformalslotcoflowjet |