Ion drag force on a small grain in highly collisional weakly anisotropic plasma: Effect of plasma production and loss mechanisms

Journal Article · Thu May 15 00:00:00 EDT 2008 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2917906· OSTI ID:21120330

Chaudhuri, M; Khrapak, S A; Morfill, G E ^[1]

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1. Max-Planck-Institut fuer Extraterrestrische Physik, D-85741 Garching (Germany)

The ion drag force acting on a small absorbing grain has been calculated in highly collisional plasma with slowly drifting ions taking into account plasma production and loss processes in the vicinity of the grain. It is shown that the strength of the plasma production and loss mechanisms not only affects the magnitude of the ion drag force, but also determines the direction of the force. The parameter regimes for the ''positive'' and ''negative'' ion drag forces have been identified. In addition, the qualitative features of the electric potential distribution around the grain in isotropic conditions (in the absence of the ion drift) are investigated.

• OSTI ID: 21120330
• Journal Information: Physics of Plasmas, Vol. 15, Issue 5; Other Information: DOI: 10.1063/1.2917906; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANIONS
ANISOTROPY
COLLISIONAL PLASMA
DISTRIBUTION
DRAG
ELECTRIC POTENTIAL
ION DRIFT
LOSSES
PLASMA DRIFT
PLASMA PRODUCTION