帮助 关于我们

返回检索结果

激发跃迁速率对热力学非平衡氮气紫外辐射的影响
Influence of excitation and transition rates on ultraviolet radiation of thermal nonequilibrium nitrogen

查看参考文献17篇

吴杰 1,2,3   余西龙 1,2 *   段然 4   朱希娟 4   李霞 4   马静 4  
文摘 基于氮气的碰撞-辐射(CR)模型,计算了速度为6.2km/s、初始压力为133Pa的高超声速流动激波中N_2和N_2~+分子电子能级的分布情况,分析了不同激发跃迁速率模型对电子能级分布及辐射光谱模拟的影响。针对流动中热力学非平衡区域和平衡区域,在300~440nm的辐射光谱开展了逐线法的数值模拟,并与激波管实验测量光谱进行了对比。结果表明,目前的激发跃迁速率均存在偏差,综合Park模型的爱因斯坦系数和Johnston模型的碰撞激发速率可以得到与实验结果最为接近的辐射光谱。
其他语种文摘 Based on the collision-radiation (CR) model of nitrogen, the distribution of the electronic energy levels of N_2 and N_2~+ molecules in the hypersonic flow shock wave with velocity 6.2km/s and initial pressure 133Pa is calculated. The effects of different excitation and transition rate models on the electronic energy level distribution and the radiation spectrum simulation are analyzed. A line-by-line method is carried out to simulate the radiation spectrum of the thermal nonequilibrium region and the equilibrium region in the 300-440nm, which are compared with the experimental measurement spectra of the shock tube. It is found that the current excitation and transition rates all have deviations, and the CR model that integrated the Einstein coefficient of Park model and the collision excitation rate of the Johnston model can gain the radiation spectrum which is the closest to the experimental results.
来源 北京航空航天大学学报 ,2019,45(3):472-477 【核心库】
DOI 10.13700/j.bh.1001-5965.2018.0392
关键词 氮气 ; 热力学非平衡 ; 碰撞-辐射(CR)模型 ; 紫外辐射 ; 激发速率
地址

1. 中国科学院力学研究所, 高温气体动力学国家重点实验室, 北京, 100190  

2. 中国科学院大学工程科学学院, 北京, 100049  

3. 光学辐射国防科技重点实验室, 光学辐射国防科技重点实验室, 北京, 100854  

4. 光学辐射重点实验室, 北京, 100854

语种 中文
文献类型 研究性论文
ISSN 1001-5965
学科 航天(宇宙航行)
基金 国家自然科学基金
文献收藏号 CSCD:6462725

参考文献 共 17 共1页

1.  Park C. Review of chemical kinetic problems for future NASA missions,Ⅰ.Earth entries. Journal of Thermophysics and Heat Transfer,1993,7(3):385-398 CSCD被引 42 次    
2.  Park C. Review of chemical-kinetic problems of future NASA missions,Ⅱ:Mars entries. Journal of Thermophysics and Heat Transfer,1994,8(1):9-23 CSCD被引 33 次    
3.  Annaloro J. Elaboration of a collisional-rediative model for CO_2-N_2-Ar plasma flows:Appliction to atmospheric Martian entries. 42nd AIAA Thermophysics Conference,2011:3954 CSCD被引 1 次    
4.  Cruden B A. Absolute radiation measurement in Venus and Mars entry conditions. 10th AIAA/ASME Joint Thermophysics and Heat Transfer Conference,2010:092407 CSCD被引 1 次    
5.  Laux C O. State-to-state modeling of a recombining nitrogen plasma experiment. Chemical Physics,2012,398(1):46-55 CSCD被引 1 次    
6.  Park C. Calculation of nonequilibrium radiation in the flight regimes of aeroassisted orbital transfer vehicles. AIAA 22nd Aerospace Sciences Meeting,1984:1-13 CSCD被引 2 次    
7.  Lemal A. Simulation of shock tube radiation measurements with a collisional-radiaitve model. 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aeroespace Exposition,2013:1-9 CSCD被引 1 次    
8.  Lee E S. Shock-tube determination of CN formation rate in a CO-N_2 mixture. 45th AIAA Aerospace Sciences Meeting and Exhibit,2007:1-13 CSCD被引 1 次    
9.  Panesi M. Analysis of the FIREⅡflight experiment by means of a collisional radiative model. 46th AIAA Aerospace Sciences Meeting and Exhibit,2008:1-15 CSCD被引 1 次    
10.  Sharma S P. Nonequilibirum and equilibrium shock front radiation measurements. Journal of Thermophysics and Heat Transfer,1991,5(3):257-265 CSCD被引 3 次    
11.  Park C. Nonequilibrium hypersonic aerothermodynamics,1989 CSCD被引 6 次    
12.  Park C. Rate parameters for electronic excitation of diatomic MoleculesⅠ.Electron-impact processes. 46th AIAA Aerospace Sciences Meeting and Exhibit,Aerospace Sciences Meetings,2008:1206 CSCD被引 1 次    
13.  Park C. Rate parameters for electronic excitation of diatomic MoleculesⅡ.Heavy particle-impact processes. 46th AIAA Aerospace Sciences Meeting and Exhibit,Aerospace Sciences Meetings,2008:1446 CSCD被引 1 次    
14.  Teulet P. Calculation of electron impact inelastic cross sections and rate coefficients for diatomic molecules.application to air molecules. Journal of Quantitative Spectroscopy and Radiative Transfer,1999,62(5):549-569 CSCD被引 2 次    
15.  Johnston C O. Nonequilibrium shock-layer radiative heating for earth and titan entry,2006:116-126 CSCD被引 4 次    
16.  吴杰. 热力学非平衡分子辐射中的重粒子影响. 红外与激光工程,2012,41(11):2981-2985 CSCD被引 1 次    
17.  Arnold J O. Line-by-line calculation of spectra from diatomic molecules and atoms assuming a voigt line profile. Journal of Quantitative Spectroscopy and Radiative Transfer,1969,9(6):775-798 CSCD被引 10 次    
引证文献 1 篇

1 袁琳慧 高速飞行器紫外辐射特性研究进展 空气动力学学报,2024,42(10):1-18
CSCD被引 0 次

显示所有1篇文献

论文科学数据集
PlumX Metrics
相关文献

 作者相关
 关键词相关
 参考文献相关

版权所有 ©2008 中国科学院文献情报中心 制作维护：中国科学院文献情报中心
地址：北京中关村北四环西路33号 邮政编码：100190 联系电话：(010)82627496 E-mail:cscd@mail.las.ac.cn 京ICP备05002861号-4 | 京公网安备11010802043238号