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- W2018522754 abstract "The design and improvement of an aeroengine rely on the analysis of the combustion process in the combustion chamber to a certain extent. It is difficult to investigate the combustion inside the chamber directly due to its obturation and invisibility, however, the physical distribution of exhaust plumes outside the chamber can be measured by various means and provide the information to deduce the combustion condition inside the chamber. Most traditional measurementations such as thermography can only measure the plane temperature distribution of the plumes, hence its applications are restrained. In this paper, a three dimensional (3D) measurement approach is proposed, which is based on a multichannel single spectral tomography (SST) and the radiation theory of blackbody. Furthermore, an SST real-time testing system was built to measure the 3D temperature distribution of the plumes of a pulse detonation engine. To improve the precision of the testing system, an emission projection matrix was proposed and the relationship between the radiant intensity of blackbody and the gray scale of the photoelectronic sensor was also deduced. Theoretical analysis and experimental results prove the feasibility of the proposed SST approach that can be promoted to apply to the 3D measurement of plumes of other aeroengines." @default.
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- W2018522754 date "2010-10-01" @default.
- W2018522754 modified "2023-09-28" @default.
- W2018522754 title "Three dimensional measurements of engine plumes with four-channel single spectral tomography" @default.
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- W2018522754 doi "https://doi.org/10.1063/1.3490234" @default.
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