Supersonic wind tunnels provide controlled test environments for aerodynamic research on scaled models. During the experiment, the stagnation pressure in the test section is required to remain constant. Due to the nonlinearity and distributed characteristics of the controlled system, a robust controller with effective flow control algorithms is required, which is then capable of properly working under different operating conditions. In this paper, an Extended Kalman Filter (EKF) based flow control strategy is proposed and implemented in the controller. The control strategy is designed based on the state estimation of a real blowdown wind tunnel, which is carried out under an EKF structure. One of the distinctive advantages of the proposed approach is its adaptability to a wide range of operating conditions for blowdown wind tunnels. Furthermore, it provides a systematic approach to tune the controller parameters to ensure the stability of the controlled air flow. Experiments with different initial conditions and control targets have been conducted to test the applicability and performance of the designed controller. The results demonstrate that the controller and its strategies can effectively control the stagnation pressure in the test section and maintain the target pressure during the stable stage of the blowdown process.
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ASME Turbo Expo 2013: Turbine Technical Conference and Exposition
June 3–7, 2013
San Antonio, Texas, USA
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-5516-4
PROCEEDINGS PAPER
Advanced Flow Control for Supersonic Blowdown Wind Tunnel Using Extended Kalman Filter Available to Purchase
Jiaqi Xi,
Jiaqi Xi
University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, China
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Qiang Zhang,
Qiang Zhang
University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, China
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Mian Li,
Mian Li
University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, China
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Zhaoguang Wang
Zhaoguang Wang
University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, China
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Jiaqi Xi
University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, China
Qiang Zhang
University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, China
Mian Li
University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, China
Zhaoguang Wang
University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, China
Paper No:
GT2013-95281, V03CT14A025; 12 pages
Published Online:
November 14, 2013
Citation
Xi, J, Zhang, Q, Li, M, & Wang, Z. "Advanced Flow Control for Supersonic Blowdown Wind Tunnel Using Extended Kalman Filter." Proceedings of the ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. Volume 3C: Heat Transfer. San Antonio, Texas, USA. June 3–7, 2013. V03CT14A025. ASME. https://doi.org/10.1115/GT2013-95281
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