journal article

Journal Article

Physics of Plasmas. 1994, 1(7), p. 2110-2118

Plasma-particulate interactions in nonuniform plasmas with finite flows

American Institute of Physics Inc.

English

1994-07

https://doi.org/10.1063/1.870608

S. Hamaguchi, and R. T. Farouki, Physics of Plasmas 1, 2110 (1994) https://doi.org/10.1063/1.870608

The polarization force on a charged participate or "dust" grain in a nonuniform plasma with finite ion flows and an external electric field is derived, based on a fluid approximation for the background plasma. This polarization force is proportional to the magnitude of the spatial gradient of the Debye length, and acts in the direction of decreasing Debye length. When the ion flow velocity is sufficiently large compared to ion thermal velocities, ions do not participate in the formation of sheaths around negatively charged particulates and the electron Debye length must be employed, since sheaths comprise only a deficiency of electrons. If the ion flow velocity is small, the contribution of the ion flow to the polarization force is proportional to the spatial gradient of the flow kinetic energy and is thus usually negligible. The expressions describing the plasma-particulate interaction may be applied to the modeling of contaminant behavior in materials-processing plasmas. © 1994 American Institute of Physics.

This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Physics of Plasmas 1, 2110 (1994) and may be found at https://doi.org/10.1063/1.870608.

78506

Plasma-particulate interactions in nonuniform plasmas with finite flows

American Institute of Physics Inc.

English

1994-07

Physics of Plasmas

1

7

2110

2118

https://doi.org/10.1063/1.870608

https://hdl.handle.net/11094/78506