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arXiv 0907.0238physics.plasm-ph
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尘埃等离子体中鞘层电场的热泳探测。第一部分:数值分析

Probing the sheath electric field using thermophoresis in dusty plasma. Part I: Numerical analysis

Victor Land, Erica Shen, Matthew Benesh, Lorin Matthews, Truell Hyde

摘要:

结合自洽的二维尘埃等离子体流体模型和三维N体程序的计算结果,确定了尘埃粒子悬浮在改进的GEC参考池鞘层中的平衡位置和晶体结构,其中下电极被加热或冷却。德拜长度,电荷和电场重建在亚毫米尺度上通过应用先前开发的,独立的方法。然而,这种方法似乎高估了电荷,因此低估了电场。即使校正了这一事实,结果表明,尘埃悬浮在玻姆点的等离子体侧。离子阻力,这是没有完全考虑到。

英文摘要:

By combining the results from a self-consistent 2D dusty plasma fluid model and a 3D N-body code, the equilibrium position and crystal structure were determined for dust particles levitated in the sheath in a modified Gaseous Electronics Conference (GEC) reference cell, in which the lower electrode was heated or cooled. The Debye length, charge and electric field were reconstructed on a sub-millimeter scale by applying a previously developed, independent method. However, this method seems to overestimate the charge, and hence underestimate the electric field. Even corrected for this fact, the results show that the dust is levitated on the plasma side of the Bohm point. The ion drag, which is not fully taken into.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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