Prediction of Transonic Shock Buffet over Supercritical Airfoil OAT15A Based on Zonal Detached-Eddy Simulation
The zonal detached-eddy simulation (ZDES) method divides the flow field into different computational modes, offering flexibility in the simulation of complex flows. The transonic shock buffet on the upper surface of the OAT15A supercritical airfoil is numerically simulated by ZDES based on the k-ω S...
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2024-10-01
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| author | Tiejun Liu Xingyu Chen Zhuoyue Tian Jie Li |
| author_facet | Tiejun Liu Xingyu Chen Zhuoyue Tian Jie Li |
| author_sort | Tiejun Liu |
| collection | DOAJ |
| description | The zonal detached-eddy simulation (ZDES) method divides the flow field into different computational modes, offering flexibility in the simulation of complex flows. The transonic shock buffet on the upper surface of the OAT15A supercritical airfoil is numerically simulated by ZDES based on the k-ω SST model. The results show that the error in the low-frequency characteristics of the transonic shock buffet predicted by ZDES compared to experiments is within 3%. Its predictions of pressure fluctuations and averaged velocity agree better with the experimental data. Overall, ZDES is effective in predicting the periodic oscillations of shock waves along the streamwise direction, flow separation induced by shock wave motion, and the small-scale vortex structures in the wake region. |
| format | Article |
| id | doaj-art-14440d32e39c4d408779636b846e444c |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-10-01 |
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| spelling | doaj-art-14440d32e39c4d408779636b846e444c2024-11-08T14:32:49ZengMDPI AGApplied Sciences2076-34172024-10-011421962810.3390/app14219628Prediction of Transonic Shock Buffet over Supercritical Airfoil OAT15A Based on Zonal Detached-Eddy SimulationTiejun Liu0Xingyu Chen1Zhuoyue Tian2Jie Li3COMAC Shanghai Aircraft Design and Research Institute, Shanghai 201210, ChinaSchool of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, ChinaSchool of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, ChinaSchool of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, ChinaThe zonal detached-eddy simulation (ZDES) method divides the flow field into different computational modes, offering flexibility in the simulation of complex flows. The transonic shock buffet on the upper surface of the OAT15A supercritical airfoil is numerically simulated by ZDES based on the k-ω SST model. The results show that the error in the low-frequency characteristics of the transonic shock buffet predicted by ZDES compared to experiments is within 3%. Its predictions of pressure fluctuations and averaged velocity agree better with the experimental data. Overall, ZDES is effective in predicting the periodic oscillations of shock waves along the streamwise direction, flow separation induced by shock wave motion, and the small-scale vortex structures in the wake region.https://www.mdpi.com/2076-3417/14/21/9628zonal detached-eddy simulationturbulencetransonic shock buffet |
| spellingShingle | Tiejun Liu Xingyu Chen Zhuoyue Tian Jie Li Prediction of Transonic Shock Buffet over Supercritical Airfoil OAT15A Based on Zonal Detached-Eddy Simulation Applied Sciences zonal detached-eddy simulation turbulence transonic shock buffet |
| title | Prediction of Transonic Shock Buffet over Supercritical Airfoil OAT15A Based on Zonal Detached-Eddy Simulation |
| title_full | Prediction of Transonic Shock Buffet over Supercritical Airfoil OAT15A Based on Zonal Detached-Eddy Simulation |
| title_fullStr | Prediction of Transonic Shock Buffet over Supercritical Airfoil OAT15A Based on Zonal Detached-Eddy Simulation |
| title_full_unstemmed | Prediction of Transonic Shock Buffet over Supercritical Airfoil OAT15A Based on Zonal Detached-Eddy Simulation |
| title_short | Prediction of Transonic Shock Buffet over Supercritical Airfoil OAT15A Based on Zonal Detached-Eddy Simulation |
| title_sort | prediction of transonic shock buffet over supercritical airfoil oat15a based on zonal detached eddy simulation |
| topic | zonal detached-eddy simulation turbulence transonic shock buffet |
| url | https://www.mdpi.com/2076-3417/14/21/9628 |
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