高速高温流场电子能非平衡的数值模拟
收稿日期: 2016-01-06
修回日期: 2016-05-26
网络出版日期: 2016-06-01
基金资助
国家自然科学基金（11372028）
Numerical simulation of electronic-electron energy nonequilibrium in high speed and high temperature flowfields
Received date: 2016-01-06
Revised date: 2016-05-26
Online published: 2016-06-01
Supported by
National Natural Science Foundation of China (11372028)
郝佳傲 , 王京盈 , 高振勋 , 蒋崇文 , 李椿萱 . 高速高温流场电子能非平衡的数值模拟[J]. 航空学报, 2016 , 37(11) : 3340 -3350 . DOI: 10.7527/S1000-6893.2016.0153
High speed and high temperature flowfields around several configurations are numerically investigated using different multi-temperature models and an 11-species finite rate chemical reaction model. The flowfields are computed by a multi-block finite volume CFD code. The three-temperature model including the process of electronic-electron nonequilibrium, together with the two-temperature model based on equilibrium electronic-electron state, are incorporated into the code. For the case of sphere ballistic range experiment, it is found that the shock standoff distance is not affected by the electronic-electron nonequilibrium. Numerical results of four flight condition for RAM-C II aircraft indicate that the distributions of electron number density predicted by the two multi-temperature models vary in a similar trend, whose values are in the same order of magnitude. Both results show good agreements with flight experimental data. The three-temperature model is capable of providing more accurate results than the two-temperature model. Numerical results of the FIRE II case yield similar distributions of surface heat flux by utilizing the three-temperature model and the two-temperature model, respectively.
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