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arXiv 2408.16484physics.plasm-phphysics.comp-ph
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二维磁化尘埃等离子体云的扩散输运

Diffusive transport of a 2-D magnetized dusty plasma cloud

Aman Singh Katariya, Amita Das, Animesh Sharma, Bibhuti Bhushan Sahu

AI总结:

本文使用LAMMPS开展分子动力学模拟,研究了二维磁化尘埃等离子体云在外加磁场下的扩散输运行为,详细揭示了输运系数对磁场和碰撞过程的依赖关系。

摘要:

尘埃等离子体介质被证明是研究物质强耦合行为的理想系统。其巨大的尺寸和缓慢的响应使得它们的动力学适合通过简单的诊断工具来捕捉。此外,由于单个粒子上的电荷远高于电子电荷,即使在室温和正常密度下,它们之间的相互作用也能处于强耦合状态。这种带电尘埃粒子通常存在于几种工业等离子体过程中,并可能产生不利影响。例如,在磁控管中,溅射现象可能会受到带电杂质团簇积累的影响。本文的目标是理解这些粒子在外加磁场存在下的输运行为。为此,使用开源的大规模原子/分子并行模拟器(LAMMPS)进行了分子动力学(MD)模拟。通过模拟详细地辨明了输运系数对所加磁场和普遍碰撞过程的依赖关系。

英文摘要:

Dusty plasma medium turns out to be an ideal system for studying the strongly coupled behavior of matter. The large size and slow response make their dynamics suitable to be captured through simple diagnostic tools. Furthermore, as the charge on individual particles is significantly higher than the electronic charge, the interaction amongst them can be in a strong coupling regime even at room temperatures and normal densities. Such charged dust particles are often present in several industrial plasma-based processes and can have a detrimental influence. For instance, in magnetrons, the sputtering phenomena may be affected by the accumulation of charged impurity clusters. The objective here is to understand the transport behavior of these particles in the presence of an externally applied magnetic field. For this purpose, Molecular Dynamics (MD) simulations are performed using an open-source large-scale atomic/molecular massively parallel simulator (LAMMPS). The dependence of the transport coefficient on the applied magnetic field and prevalent collisional processes has been discerned through simulations in detail.

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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