论文标题
分析惯性限制融合等离子体中电子热传输的动力学模型
Analysis of a kinetic model for electron heat transport in inertial confinement fusion plasmas
论文作者
论文摘要
为了确定宏观尺度上的电子热通量密度,使用最广泛的方法是通过多组技术求解扩散方程。但是,该方法仅限于温度梯度引起的运输,而无需考虑其他快速电子的来源,因为电荷分离引起的电场是间接处理的。此外,与完整的动力学计算相比,报道了基础分布函数的显着差异。这些局限性激发了替代性减少动力学模型的研究。其中一个的物理内容加深了,与讨论的其他模型相比,其精度得到了提高和使用的好处。
To determine the electron heat flux density on macroscopic scales, the most widely used approach is to solve a diffusion equation through a multi-group technique. This method is however restricted to transport induced by temperature gradients without accounting for other sources of fast electrons because the electric field induced by the charge separation is indirectly treated. In addition, significant discrepancies are reported on the underlying distribution function when compared to complete kinetic calculations. These limitations motivate the research for alternative reduced kinetic models. The physical content of one of them is here deepened, its precision improved and the benefit of its usage compared to other models discussed.