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Cavity dynamics and particle alignment in the wake of a supersonic projectile penetrating a dusty plasma.
- Source :
-
Physical Review E: Statistical, Nonlinear & Soft Matter Physics . Jun2011, Vol. 83 Issue 6-2, p66404:1-66404:6. 6p. - Publication Year :
- 2011
-
Abstract
- The penetration of a projectile into a strongly coupled dusty plasma was studied in a radio-frequency discharge under microgravity conditions. A supersonic projectile produces an elongated dust-free cavity in its wake. The dynamics of the cavity is analyzed and compared with Langevin dynamics simulations. Besides a three-dimensional Mach cone structure, the simulation shows that the cavity dynamics can be subdivided into three phases: An opening phase with fixed time scale, a closing phase, whose duration is affected by the projectile speed and, finally, a phase of particle realignment in the target cloud, which persists for a long time after the closure of the cavity. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15393755
- Volume :
- 83
- Issue :
- 6-2
- Database :
- Academic Search Index
- Journal :
- Physical Review E: Statistical, Nonlinear & Soft Matter Physics
- Publication Type :
- Academic Journal
- Accession number :
- 67006818
- Full Text :
- https://doi.org/10.1103/PhysRevE.83.066404