5 January 2017 Infrared characteristics and flow field of the exhaust plume outside twin engine nozzle
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Proceedings Volume 10244, International Conference on Optoelectronics and Microelectronics Technology and Application; 102440Y (2017) https://doi.org/10.1117/12.2264464
Event: International Conference on Optoelectronics and Microelectronics Technology and Application, 2016, Shanghai, China
Abstract
For mastery of infrared radiation characteristics and flow field of exhaust plume of twin engine nozzles, first, a physical model of the double rectangular nozzles is established with the Gambit, and the mathematical model of flow field is determined. Secondly, software Fluent6.3 is used to simulated the 3-D exterior flow field of the twin engine nozzles, and the datum of flow field, such as temperature, pressure and density, are obtained. Finally, based on the plume temperature, the exhaust plume space is divided. The exhaust plume is equivalent to a gray-body. A calculating model of the plume infrared radiation is established, and the plume infrared radiation characteristics are calculated by the software MATLAB, then the spatial distribution curves are drawn. The result improves that with the height increasing the temperature, press and infrared radiant intensity diminish. Compared with engine afterburning condition, temperature and infrared radiant intensity increases and press has no obvious change.
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Yun-song Feng, "Infrared characteristics and flow field of the exhaust plume outside twin engine nozzle", Proc. SPIE 10244, International Conference on Optoelectronics and Microelectronics Technology and Application, 102440Y (5 January 2017); doi: 10.1117/12.2264464; https://doi.org/10.1117/12.2264464
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