首页|Temperature field reconstruction method for aero en-gine exhaust using the colored background oriented Schlieren technology
Temperature field reconstruction method for aero en-gine exhaust using the colored background oriented Schlieren technology
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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.
SONG Fengcheng、WU Jun、ZHU Yuheng、XU Haitao、Li Yanling、YU Zhijing
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College of Aeronautical Engineering,Civil Aviation University of China,Tianjin 300300,China
State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University,Tianjin 300072,China
Kinjin Flight Training College,Civil Aviation Flight University of China,Guanghan 618300,China
College of Electronic Information and Automation,Civil Aviation University of China,Tianjin 300300,China
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国家自然科学基金Basic Science-Research Funds of Na-tional University天津市教委项目
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