Nonviscous motion of a slow particle in a dust crystal under microgravity conditions.

Abstract

Subsonic motion of a large particle moving through the bulk of a dust crystal formed by negatively charged small particles is investigated using the PK-3 Plus laboratory onboard the International Space Station. Tracing the particle trajectories shows that the large particle moves almost freely through the bulk of the plasma crystal, while dust particles move along characteristic α-shaped pathways near the large particle. In the hydrodynamic approximation, we develop a theory of nonviscous dust particle motion about a large particle and calculate particle trajectories. Good agreement with experiment validates our approach.

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Cite this paper

@article{Zhukhovitskii2012NonviscousMO, title={Nonviscous motion of a slow particle in a dust crystal under microgravity conditions.}, author={D I Zhukhovitskii and V. Fortov and Vladimir I Molotkov and Andrey M Lipaev and V N Naumkin and Hubertus M. Thomas and Alexei V Ivlev and Mierk Schwabe and Gregor Morfill}, journal={Physical review. E, Statistical, nonlinear, and soft matter physics}, year={2012}, volume={86 1 Pt 2}, pages={016401} }