发表机构
Lomonosov Moscow State University(莫斯科国立罗蒙诺索夫大学)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
提出通过假设最终组分无压来闭合Vlasov-Poisson矩链,得到双曲方程组并解释为多组分介质,各组分由电场耦合。
AI 中文摘要
我们提出了一种用于闭合Vlasov-Poisson动力学系统(Landau流体模型)矩链的方法,该方法在每一步后续步骤中产生一个双曲型方程组。该系统被解释为一种多组分介质,其中每个组分具有自身的密度、速度和压力。各组分之间的耦合由电场介导。矩链闭合的原理是假设流体的最终组分是无压的。
英文摘要
We propose a method for closing moment chains for the Vlasov-Poisson kinetic system (the Landau fluid model), which yields a hyperbolic system of equations at each subsequent step. This system is interpreted as a multicomponent medium, where each component has its own density, velocity, and pressure. The coupling between the components is mediated by an electric field. The principle of closing moment chains is that the final component of the fluid is assumed to be pressureless.
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