24 October 2017 Numerical calculation on infrared characteristics of the special vehicle exhaust system
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Proceedings Volume 10461, AOPC 2017: Optical Spectroscopy and Imaging; 104611L (2017) https://doi.org/10.1117/12.2285597
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China
Abstract
For mastery of infrared radiation characteristics and flow field of the special vehicle exhaust system, first, a physical model of the special vehicle exhaust system 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 special vehicle exhaust system, and the datum of flow field, such as temperature, pressure and density, are obtained. Thirdly, based on the plume temperature, the special vehicle exhaust space is divided. The exhaust is equivalent to a gray-body. A calculating model of the vehicle exhaust infrared radiation is established, and the exhaust infrared radiation characteristics are calculated by the software MATLAB, then the spatial distribution curves are drawn. Finally, the numerical results are analyzing, and the basic laws of the special vehicle exhaust infrared radiation are explored. The results show that with the increase of the engine speed, the temperature of the exhaust pipe wall of the special vehicle increases, and the temperature and pressure of the exhaust gas flow field increase, which leads to the enhancement of the infrared radiation intensity
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Yun-song Feng, Yun-song Feng, Xiao-xia Li, Xiao-xia Li, Wei Jin, Wei Jin, } "Numerical calculation on infrared characteristics of the special vehicle exhaust system", Proc. SPIE 10461, AOPC 2017: Optical Spectroscopy and Imaging, 104611L (24 October 2017); doi: 10.1117/12.2285597; https://doi.org/10.1117/12.2285597
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