高速高温流场电子能非平衡的数值模拟

doi:10.7527/S1000-6893.2016.0153

流体力学与飞行力学

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高速高温流场电子能非平衡的数值模拟

郝佳傲¹, 王京盈², 高振勋¹, 蒋崇文¹, 李椿萱¹

1. 北京航空航天大学航空科学与工程学院, 北京 100083;
2. 山东大学能源与动力工程学院, 济南 250100

收稿日期:2016-01-06 修回日期:2016-05-26 出版日期:2016-11-15 发布日期:2016-06-01
通讯作者: 王京盈,男,博士,助理研究员。主要研究方向:高超声速气动热力学。Tel.:0531-88392890,E-mail:wjy_sdu@126.com E-mail:wjy_sdu@126.com
作者简介:郝佳傲,男,博士研究生。主要研究方向:高超声速气动热力学。Tel.:010-82317521,E-mail:sharphao_buaa@icloud.com;王京盈,男,博士,助理研究员。主要研究方向:高超声速气动热力学。Tel.:0531-88392890,E-mail:wjy_sdu@126.com
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

HAO Jiaao¹, WANG Jingying², GAO Zhenxun¹, JIANG Chongwen¹, LEE Chunhian¹

1. School of Aeronautic Science and Engineering, Beihang University, Beijing 100083, China;
2. School of Energy and Power Engineering, Shandong University, Ji'nan 250100, China

Received:2016-01-06 Revised:2016-05-26 Online:2016-11-15 Published:2016-06-01
Supported by:
National Natural Science Foundation of China (11372028)

摘要/Abstract

摘要：

采用描述电子能非平衡的三温度模型，结合11组分空气的化学反应模型，对多种高速高温热化学非平衡流场开展数值模拟，并与描述电子能平衡的两温度模型结果进行对比，研究电子能非平衡对高超声速流场特性的影响。圆球弹道靶试验算例表明电子能非平衡不影响激波脱体距离。RAM-C II飞行器的4个飞行工况算例表明，尽管两温度和三温度模型结果存在差异，但二者电子数密度分布的趋势和量级接近，均可与飞行试验数据保持一致，其中三温度模型的预测效果更好。FIRE II飞行器极高温流场模拟结果显示，电子能非平衡几乎不影响飞行器表面的对流传热。

关键词: 高超声速, 热非平衡, 化学反应, 数值模拟, 黑障

Abstract:

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.

Key words: hypersonic, thermal nonequilibrium, chemical reaction, numerical simulation, blackout

中图分类号:

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.

HAO Jiaao, WANG Jingying, GAO Zhenxun, JIANG Chongwen, LEE Chunhian. Numerical simulation of electronic-electron energy nonequilibrium in high speed and high temperature flowfields[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(11): 3340-3350.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

高速高温流场电子能非平衡的数值模拟

Numerical simulation of electronic-electron energy nonequilibrium in high speed and high temperature flowfields

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