| 负载等离子体扰动对Z箍缩动态黑腔辐射温度的影响 |
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| 引用本文： | 刘晓丽,祁建敏,褚衍运.负载等离子体扰动对Z箍缩动态黑腔辐射温度的影响[J].强激光与粒子束,2023,35(5):052002-1-052002-9. |
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| 作者姓名： | 刘晓丽 祁建敏 褚衍运 |
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| 作者单位： | 中国工程物理研究院 核物理与化学研究所，四川 绵阳 621900 |
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| 基金项目： | 国家自然科学基金项目(11875239，12135010，12175207) |
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| 摘 要： | 通过二维辐射流体力学模拟研究了Z箍缩动态黑腔负载等离子体撞击泡沫柱的动力学过程，探索了带扰动负载等离子体形状对黑腔内辐射温度的影响。结果表明，带有扰动的负载等离子体撞击泡沫后会产生Rayleigh-Taylor(RT)流体不稳定性，导致动态黑腔内的辐射在负载等离子体光薄区域发生漏失，使黑腔内辐射温度降低；负载等离子体扰动振幅越大、波长越大，辐射漏失越严重，同等动能加载条件下黑腔内辐射温度也越低。
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| 关 键 词： | Z箍缩 动态黑腔 等离子体扰动 辐射漏失 Rayleigh-Taylor不稳定性 |
| 收稿时间： | 2022-09-06 |
Effect of load plasma disturbance on radiation temperature in Z-pinch dynamic hohlraum |
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| Affiliation: | Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900, China |
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| Abstract: | The dynamic process of load plasma impacting on the foam cylinder was studied by two-dimensional radiation hydrodynamics simulation, and the influence of the shape of load plasma with disturbance on the radiation temperature in dynamic hohlraum was explored. The results show that Rayleigh-Taylor fluid instability will be generated after the disturbed load plasma impacting on the foam, and the development of RT instability will lead to the radiation leakage in the light-thin region of the load plasma, which will reduce the radiation temperature in the dynamic hohlraum. The larger the amplitude and the wavelength of disturbance in the load plasma, the more serious radiation leakage occurs, and the lower the radiation temperature will be in the dynamic hohlraum under the same kinetic energy loading condition. |
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