Laminar interactions in high Mach number plasma flows
Laminar interactions in high Mach number plasma flows
复制标题
高马赫数等离子体流中的层流相互作用
DOI：
10.1063/1.1694472
复制
发表时间：
1973
影响因子：
4.6
通讯作者：
K. Papadopoulos
中科院分区：
文献类型：
--
作者：
R. Clark;J. Denavit;K. Papadopoulos
用数值模拟的方法研究了磁场作用下逆流等离子体的层流相互作用。该模型是一维的，基于具有直线轨道的Vlasov方程(Ωi t ≪ 1)。电子被视为与离子保持电荷中性的零温度无质量流体，并假定为有限的电阻率。确定了不同马赫数、密度比和电阻率下的磁场和密度分布。研究了流动等离子体中各种有限初始密度分布的影响。检验了分布函数，以确定在湍流模型中是否会出现微观不稳定性。讨论了这些结果与磁活塞形成的关系。
The laminar interaction of counterstreaming plasmas in the presence of a magnetic field was studied by numerical simulation. The model is one‐dimensional and is based on the Vlasov equation with straight orbits for ions (Ωi t ≪ 1). Electrons are treated as a massless, zero‐termperature fluid maintaining charge neutrality with the ions, and a finite resistivity is assumed. Magnetic field and density profiles are determined for different Mach numbers, density ratios, and resistivities. Effects of various finite initial density profiles in the streaming plasma are investigated. The distribution function is examined to determine whether microinstabilities would develop in a turbulent model. The relevance of these results to the formation of magnetic pistons is discussed.