2020/1/19 17:05:07 YUAN Jiehong, LIANG Dong, ZHOU Shiming, XIAO Shijie, LI Xingkun, YANG Juntai 10true 2020/1/19 17:05:07 ZHANG Jinyi, WANG Bin, QIN Fen, ZHU Hongtao 9true 2020/1/19 17:05:07 GONG Zifeng, LIU Gang, SONG Rui, WU Yubin, CAI Guangbin 8true 2020/1/19 17:05:07 LI Xiaobing, ZHAO Siyuan, BU Xiangwei, HE Yangguang 7true 2020/1/19 17:05:07 FENG Zhiwei, JIANG Zengrong, ZHANG Qingbin, GE Jianquan, HUANG Hao 6true 2020/1/19 17:05:07 CHEN Qi, WANG Xugang 5true 2020/1/19 17:05:07 MA Guoliang, ZHANG Haiyang, CAI Hongming, CHANG Sijiang 4true 2 recombination during the hypersonic Mars entries, which will highly influence the aerodynamic heating. The surface CO₂ two-step catalytic model was dealt with on the basis of the three-dimensional compressible flow solver for chemical reaction system. The rates of surface chemical reactions were controlled by surface adsorption and Eley-Rideal recombination. The hypersonic flow around the 70° sphere-cone testing model was numerically solved to predict the chemical non-equilibrium aerodynamic heating with surface catalytic effects. The influence of two-step CO₂ catalytic mechanism, including two pathways, CO+O(s) and O+CO(s), on the aerodynamic heating was numerically investigated. The recombination of O₂ and CO₂ coexists and competes with each other. The catalytic heating increases monotonically with the rise of catalytic efficiency. The numerical calculation established a quantitative correlation between the catalytic pathways and the non-equilibrium heating level, and the results show that the relationships between the weight of two CO₂ catalytic pathways and the heating capacity are non-monotonic, and the combined aerodynamic heating of two pathways of CO₂ recombination is calculated to be higher than the value from single pathway. The current study contributes in several ways to our understanding of carbon-oxygen catalytic mechanism and precise evaluation of aerodynamic heating for Mars entries.]]> 2020/1/19 17:05:07 YANG Xiaofeng, GUI Yewei, QIU Bo, DU Yanxia, XIAO Guangming 3true 2020/1/19 17:05:08 LI Dong, LIU Xue 2true 2020/1/19 0:00:00 QIU Peng, YAO Xuri, LI Mingqian, ZHAI Guangjie 1true