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arXiv 0905.1135physics.plasm-ph
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用于尘埃等离子体实验的改进的GEC室的实验和计算特性

Experimental and computational characterization of a modified GEC cell for dusty plasma experiments

Victor Land, Erica Shen, Bernard Smith, Lorin Matthews, Truell Hyde

摘要:

本文首次用一个为模拟微重力尘埃等离子体实验而发展的自洽流体模型来模拟在改进的GEC参考池中的非对称尘埃等离子体实验。数值计算结果直接与实验数据和实验确定的依赖性的全球放电参数上施加的驱动电位和中性气体压力被发现是很好地匹配的模型。研究了对尘埃粒子输送重要的局部剖面,并与实验确定的剖面进行了比较。在不同的放电设置中的中平面的径向力。在修改后的GEC细胞和首次报道的结果为原来的GEC参考细胞中获得的结果之间的差异被指出。

英文摘要:

A self-consistent fluid model developed for simulations of micro- gravity dusty plasma experiments has for the first time been used to model asymmetric dusty plasma experiments in a modified GEC reference cell with gravity. The numerical results are directly compared with experimental data and the experimentally determined dependence of global discharge parameters on the applied driving potential and neutral gas pressure is found to be well matched by the model. The local profiles important for dust particle transport are studied and compared with experimentally determined profiles. The radial forces in the midplane are presented for the different discharge settings. The differences between the results obtained in the modified GEC cell and the results first reported for the original GEC reference cell are pointed out.

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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