Evolution of an expanding dusty plasma with negative ions
- Theoretical Physics Laboratory, Faculty of Physics, U.S.T.H.B. 16123, Algiers (Algeria)
The dusty plasma radial expansion is studied in the case of a spherical as well as cylindrical configuration. The effect of negative ions is introduced through the dust charge fluctuation equation. Electrons, positive, and negative ions are modelled by the Boltzmann distribution function and the dust grains by fluid equations. Using the self-similar theory, the nonlinear set of differential equations is solved numerically. It is found that the dust charge presents a critical value which depends on the negative ion species type. It is also found that the dust expansion ends earlier and the lighter particle densities profiles depend on the dust initial charge.
- OSTI ID:
- 20860355
- Journal Information:
- Physics of Plasmas, Vol. 13, Issue 11; Other Information: DOI: 10.1063/1.2378629; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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