Multi-component jet flow field and radiation analysis based on DSMC method

Weibiao Du; Xingdong Bao; Zhenhua Wang; Sihui Wang; Hongxia Mao; Xilong Yu

doi:10.1117/12.3032607

4 December 2024 Multi-component jet flow field and radiation analysis based on DSMC method

Weibiao Du, Xingdong Bao, Zhenhua Wang, Sihui Wang, Hongxia Mao, Xilong Yu

Author Affiliations +

Proceedings Volume 13283, Conference on Spectral Technology and Applications (CSTA 2024); 1328306 (2024) https://doi.org/10.1117/12.3032607
Event: Conference on Spectral Technology and Applications (CSTA 2024), 2024, Dalian, China

Abstract

The direct Simulation Monte Carlo (DSMC ) method is used to calculate the flow field of the five-component (N₂/H₂/CO/NO/CO₂) gas , and the macro parameter parameters of the virtual molecules are transformed according to the micro-macro corresponding transformation relationship According to the simulation results, it is found that the flame diffusion effect in vacuum is obvious. Among the five components, the expansion range of H₂ molecules with lighter molecular weight is smaller. Analyzing the number density distribution of gas molecules on the axis of the jet nozzle, The five number densities are in the order of 10¹⁸ -10¹⁹/m³ .The line-by-line method is used to calculate the radiation of the flow field . It is found that due to the existence of CO₂ and CO, there is greater radiation intensity near the range of 4.0-5.0μm .

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Weibiao Du, Xingdong Bao, Zhenhua Wang, Sihui Wang, Hongxia Mao, and Xilong Yu "Multi-component jet flow field and radiation analysis based on DSMC method", Proc. SPIE 13283, Conference on Spectral Technology and Applications (CSTA 2024), 1328306 (4 December 2024); https://doi.org/10.1117/12.3032607

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