The solution of the plasma equation in plane parallel geometry with a Maxwellian source
The solution of the plasma equation in plane parallel geometry with a Maxwellian source
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用麦克斯韦源求解平面平行几何中的等离子体方程
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
P. C. Johnson
中科院分区：
文献类型：
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作者：
R. Bissell;P. C. Johnson
在平面平行几何中求解了具有麦克斯韦粒子源的热无碰撞等离子体的等离子体方程。采用广义玻姆准则识别等离子体鞘层边界。这种动力学处理，与流体和冷离子动力学模型一样，会在鞘边产生无限电场。这与Emmert等人先前的热离子动力学模型的结果形成鲜明对比。流体23,803(1980)]，它给出了鞘层边缘的有限电场。此外，本模型给出的鞘前电位比Emmert给出的更大，并且与流体结果更吻合。
The plasma equation for a warm collisionless plasma with a Maxwellian particle source is solved in plane parallel geometry. The generalized Bohm criterion is used to identify the plasma–sheath boundary. This kinetic treatment, in common with fluid and cold‐ion kinetic models, results in an infinite electric field at the sheath edge. This is in sharp contrast to results from a previous warm‐ion kinetic model, by Emmert et al. [Phys. Fluids 23, 803 (1980)], which gave a finite electric field at the sheath edge. Also, the presheath potential given by the present model is greater than that given by Emmert and is in better agreement with fluid results.