CH薄膜非平衡辐射烧蚀的特性
Characters of nonequilibrium radiative ablation of CH foil
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摘要: 用一维多群辐射输运流体力学RDMG程序数值模拟研究了在神光-II黑腔辐射源条件下,非平衡辐射烧蚀CH薄膜的过程,给出了与平衡辐射烧蚀不同的烧蚀图像,得到了非平衡辐射烧蚀相关的数值定律。Abstract: The process of nonequilibrium radiation ablation of CH foil has been numerically studied using 1D RDMG code of multigroupnonequilibrium radiation hydrodynamic under the condition of radiation source of ShenguangII hohlraum,meanwhile different ablation images from the process of nonequilibrium radiative ablation and the relative scaling laws are obtained. Numerical results show that both electron temperatue and ion temperature separate from radiation temperature and the spectra of radiation flux is nonequilibrium inside CH during the whole process of CH foil ablation. The ablative depth is shorter and shock wave is weaker compared with equilibrium ablation because nonequilibrium radiation ablation contains ionization wave, radiation heating wave and radiation ablation wave.
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Key words:
- nonequilibrium radiative ablation /
- character /
- nnumerical scaling law /
- ch foil
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