Temperature field reconstruction method for aero engine exhaust using the colored background oriented Schlieren technology
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  • SONG Fengcheng

    SONG Fengcheng

    1. College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China ;2. State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China;3. Xinjin Flight Training College, Civil Aviation Flight University of China, Guanghan 618300, China;4. College of Electronic Information and Automation, Civil Aviation University of China, Tianjin 300300, China
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  • WU Jun

    WU Jun

    1. College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China ;2. State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China;3. Xinjin Flight Training College, Civil Aviation Flight University of China, Guanghan 618300, China;4. College of Electronic Information and Automation, Civil Aviation University of China, Tianjin 300300, China
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  • ZHU Yuheng

    ZHU Yuheng

    1. College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China ;2. State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China;3. Xinjin Flight Training College, Civil Aviation Flight University of China, Guanghan 618300, China;4. College of Electronic Information and Automation, Civil Aviation University of China, Tianjin 300300, China
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  • XU Haitao

    XU Haitao

    1. College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China ;2. State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China;3. Xinjin Flight Training College, Civil Aviation Flight University of China, Guanghan 618300, China;4. College of Electronic Information and Automation, Civil Aviation University of China, Tianjin 300300, China
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  • LI Yanling

    LI Yanling

    1. College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China ;2. State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China;3. Xinjin Flight Training College, Civil Aviation Flight University of China, Guanghan 618300, China;4. College of Electronic Information and Automation, Civil Aviation University of China, Tianjin 300300, China
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  • YU Zhijing

    YU Zhijing

    1. College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China ;2. State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China;3. Xinjin Flight Training College, Civil Aviation Flight University of China, Guanghan 618300, China;4. College of Electronic Information and Automation, Civil Aviation University of China, Tianjin 300300, China
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Affiliation:

1. College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China ;2. State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China;3. Xinjin Flight Training College, Civil Aviation Flight University of China, Guanghan 618300, China;4. College of Electronic Information and Automation, Civil Aviation University of China, Tianjin 300300, China

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    Abstract:

    The detection of the jet temperature field in an aircraft engine tail is an effective way to reflect the running state of an engine. To solve the complicated detection process of current laser diagnostic methods, the colored background oriented Schlieren (CBOS) method was proposed to obtain a tail jet temperature field. First, the background Schlieren image with three-color points was collected for the exhaust gas temperature (EGT) field of the engine. Then the refractive index field of the engine exhaust was obtained according to the proposed CBOS method. Finally, the three-dimensional EGT field was reconstructed through the refractive index field. The simulation and the experimental results show the feasibi-lity and effectiveness of the proposed method.

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SONG Fengcheng, WU Jun, ZHU Yuheng, XU Haitao, LI Yanling, YU Zhijing. Temperature field reconstruction method for aero engine exhaust using the colored background oriented Schlieren technology[J]. Optoelectronics Letters,2022,18(4):243-250

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  • Online: April 27,2022
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