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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.
Using Fokker-Planck simulation combined with our numerical simulation work, we simulate and discuss the electronic non-local heat transport phenomenon in laser plasma.The basic characteristics of non-local heat transport and laser In the process of heating, the preheating effect of the dense plasma sub-region in the front of the temperature ablation, the current-limiting effect in the vicinity of the critical interface, and the anti-diffusion and current-limiting effect in the coronal region are also discussed.With the comparison between the Fokker-Planck simulation and the corresponding fluid simulation, The value of current-limiting factor and the limitation of local current-limiting model under high-intensity laser.