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含碱金属杂质的高超声速烧蚀流场特性数值模拟

柴栋 方洋旺 童中翔 高翔

柴栋, 方洋旺, 童中翔, 高翔. 含碱金属杂质的高超声速烧蚀流场特性数值模拟[J]. 航空动力学报, 2013, 28(9): 1962-1966.
引用本文: 柴栋, 方洋旺, 童中翔, 高翔. 含碱金属杂质的高超声速烧蚀流场特性数值模拟[J]. 航空动力学报, 2013, 28(9): 1962-1966.
CHAI Dong, FANG Yang-wang, TONG Zhong-xiang, GAO Xiang. Numerical simulation of characteristic of hypersonic ablation flow field containing alkali-metal impurities[J]. Journal of Aerospace Power, 2013, 28(9): 1962-1966.
Citation: CHAI Dong, FANG Yang-wang, TONG Zhong-xiang, GAO Xiang. Numerical simulation of characteristic of hypersonic ablation flow field containing alkali-metal impurities[J]. Journal of Aerospace Power, 2013, 28(9): 1962-1966.

含碱金属杂质的高超声速烧蚀流场特性数值模拟

基金项目: 国家自然科学基金(61172083)

Numerical simulation of characteristic of hypersonic ablation flow field containing alkali-metal impurities

  • 摘要: 针对高超声速飞行器的烧蚀现象,采用Newton迭代的空间推进方法,数值求解化学非平衡的抛物化Navier-Stokes(PNS)方程.以黏胶基碳布-氨酚醛树脂为烧蚀材料,建立了含碱金属杂质的18组分33反应的化学反应模型,计算了小钝锥体的壁面温度,并和现有文献结果进行对比验证.在此基础上,对含碱金属杂质的高超声速烧蚀流场进行了模拟,深入分析了含碱金属杂质的烧蚀反应对流场温度、压力和电子数密度的影响.结果表明:烧蚀反应使得流场温度较非烧蚀情况增加了10%~15%;考虑碱金属杂质Na后,流场电子数密度增大了1~2个数量级.

     

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出版历程
  • 收稿日期:  2012-09-10
  • 刊出日期:  2013-09-28

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