| C/SiC材料主动氧化烧蚀计算研究 |
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| 引用本文： | 邓代英,陈思员,俞继军,欧东斌.C/SiC材料主动氧化烧蚀计算研究[J].空气动力学学报,2011,29(4). |
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| 作者姓名： | 邓代英 陈思员 俞继军 欧东斌 |
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| 作者单位： | 中国航天空气动力技术研究院,北京,100074 |
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| 摘 要： | 建立了C/SiC材料的热化学平衡烧蚀模型,进行了C/SiC材料烧蚀机理的计算研究和试验验证,理论计算结果和试验数据符合良好。计算结果表明,在高温空气环境下,C/SiC材料的无因次质量烧蚀率B与材料中C元素、Si元素的质量分数及温度、压力有关。在同样条件下,C/SiC材料主动氧化烧蚀速率大于C/C复合材料烧蚀速率。
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| 关 键 词： | 碳化硅 主动氧化 烧蚀 |
Calculation study of the active oxidative ablation of C/SiC |
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| DENG Dai-ying,CHEN Si-yuan,YU Ji-jun,OU Dong-bin.Calculation study of the active oxidative ablation of C/SiC[J].Acta Aerodynamica Sinica,2011,29(4). |
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| Authors: | DENG Dai-ying CHEN Si-yuan YU Ji-jun OU Dong-bin |
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| Institution: | DENG Dai-ying,CHEN Si-yuan,YU Ji-jun,OU Dong-bin(China Academy of Aerospace Aerodynamics,Beijing 100074,China) |
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| Abstract: | Aerothermo Chemical Equilibrium(ACE) ablation model of C/SiC was established.The ablative performance of C/SiC was studied numerically and experimentally,and the computational results conformed well with the experimentally measured data.The results indicated that the dimensionless mass flux(B) of C/SiC had relation with the mass fraction of C and Si in the material,the temperature and the pressure in high temperature air.The active oxidative ablation rate of C/SiC is greater than C/C composite material unde... |
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| Keywords: | Silicon carbide active oxidation ablation |
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