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

作　　者：SONG Fengcheng WU Jun ZHU Yuheng XU Haitao LI Yanling YU Zhijing 

机构地区：[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

出　　处：《Optoelectronics Letters》2022年第4期243-250,共8页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.52005500);the Basic Science-Research Funds of National University(No.3122019088);the Foundation of Tianjin Educational Committee(No.2018KJ242)。

摘　　要：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 feasibility and effectiveness of the proposed method.

关 键 词：field COLORED METHOD 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] V263.6[自动化与计算机技术—计算机科学与技术]