Optimizing flow control with ensemble Kalman method for mitigating flow-induced vibration
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866917979186266112 |
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| author | Yi, Liu Shizhao, Wang Xin-Lei, Zhang Guowei, He |
| author_facet | Yi, Liu Shizhao, Wang Xin-Lei, Zhang Guowei, He |
| contents | The ensemble Kalman method is introduced for optimizing flow control strategies in order to mitigate the flow-induced vibration of structures. Different types of control strategies such as passive control, open-loop active control, and closed-loop active control are tested, showing the flexibility of the method in flow control optimization. The ensemble Kalman method is first tested to mitigate vortex shedding of flows around a circular cylinder by optimizing the placement of small cylinders downstream. Further, the method is assessed to suppress shock buffeting over the NACA 0012 airfoil by optimizing the movement of a compliant aileron. Our results for all test cases show that the ensemble-based method can effectively find optimal control strategies that significantly reduce the vibrations of aerodynamic force, and can be a useful alternative for flow control optimization, due to its merits in non-intrusiveness and ease of implementation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_05037 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Optimizing flow control with ensemble Kalman method for mitigating flow-induced vibration Yi, Liu Shizhao, Wang Xin-Lei, Zhang Guowei, He Fluid Dynamics The ensemble Kalman method is introduced for optimizing flow control strategies in order to mitigate the flow-induced vibration of structures. Different types of control strategies such as passive control, open-loop active control, and closed-loop active control are tested, showing the flexibility of the method in flow control optimization. The ensemble Kalman method is first tested to mitigate vortex shedding of flows around a circular cylinder by optimizing the placement of small cylinders downstream. Further, the method is assessed to suppress shock buffeting over the NACA 0012 airfoil by optimizing the movement of a compliant aileron. Our results for all test cases show that the ensemble-based method can effectively find optimal control strategies that significantly reduce the vibrations of aerodynamic force, and can be a useful alternative for flow control optimization, due to its merits in non-intrusiveness and ease of implementation. |
| title | Optimizing flow control with ensemble Kalman method for mitigating flow-induced vibration |
| topic | Fluid Dynamics |
| url | https://arxiv.org/abs/2504.05037 |