| 激光等离子体中电子热输运现象的数值模拟 |
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| 引用本文： | 赵斌,郑坚.激光等离子体中电子热输运现象的数值模拟[J].中国科学:物理学 力学 天文学,2012(11):1196-1203. |
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| 作者姓名： | 赵斌 郑坚 |
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| 作者单位： | [1]中国科学技术大学近代物理系,合肥230026 [2]中国科学院基础等离子体重点实验室,合肥230026 |
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| 基金项目： | 国家自然科学基金资助项目（批准号：11005112） |
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| 摘 要： | 利用Fokker-Planck模拟并结合我们的数值模拟研究工作,对激光等离子体中电子非局域热输运现象进行了模拟计算与讨论.简要介绍了电子的非局域热输运的基本特性以及激光加热过程中温度烧蚀前沿稠密等离子体子区的预热效应、临界面附近的限流效应,以及冕区的反扩散与限流效应.结合Fokker-Planck模拟与相应流体模拟对比研究,探讨了限流因子的取值以及高强度激光作用下局域限流模型的局限性.
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| 关 键 词： | 激光等离子体 电子非局域热输运现象 Fokker-Planck模拟 |
Numerical simulation of electron thermal transport phenomenon |
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| ZHAO Bin ＆ ZHENG Jian.Numerical simulation of electron thermal transport phenomenon[J].Scientia Sinica Pysica,Mechanica & Astronomica,2012(11):1196-1203. |
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| Authors: | ZHAO Bin ＆ ZHENG Jian |
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| Institution: | ZHAO Bin ＆ ZHENG Jian (1 CAS Key Laboratory of Basic Plasma Physics,University of Science and Technology of China,Hefei 230026,China;2 Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China) |
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| Abstract: | The electron transport phenomena is computed and discussed by using Fokker-Planck simulations.The main characteristics of nonlocal electron transport are briefly described for laser-produced plasmas,which include the effects of preheating in overdense region,flux inhabitation near critical surface,and anti-diffusion in coronal region.Finally,the choice of value of flux limiter is discussed for different incident laser intensities. |
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| Keywords: | electron thermal transport laser-produced plasma Fokker-Planck simulation |
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