Kinetic modeling of a one-dimensional, bounded plasma in the ambipolar regime

Monojoy Goswami; H. Ramachandran

doi:10.1063/1.1318356

Kinetic modeling of a one-dimensional, bounded plasma in the ambipolar regime

Monojoy Goswami, H. Ramachandran

Carbon and Composites

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Abstract

In this paper we present a self-consistent kinetic simulation of a diffusion dominated bulk plasma region. Collisions have been modeled by a velocity-dependent Krook collision operator. The technique is capable of handling large systems - the results presented here are for systems 100λ_mfp in extent - yet retains the details of the edge physics present. The distribution functions for the trapped and the transiting orbits and their moments are obtained. The density and potential profiles inside the bulk shows overall agreement with ambipolar predictions. The kinetic equivalent of D_A is obtained and compared to the fluid prediction. The validity of the code and the observed deviations from fluid treatments are discussed.

Original language	English
Pages (from-to)	4845-4850
Number of pages	6
Journal	Physics of Plasmas
Volume	7
Issue number	12
DOIs	https://doi.org/10.1063/1.1318356
State	Published - Dec 2000

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abstract = "In this paper we present a self-consistent kinetic simulation of a diffusion dominated bulk plasma region. Collisions have been modeled by a velocity-dependent Krook collision operator. The technique is capable of handling large systems - the results presented here are for systems 100λmfp in extent - yet retains the details of the edge physics present. The distribution functions for the trapped and the transiting orbits and their moments are obtained. The density and potential profiles inside the bulk shows overall agreement with ambipolar predictions. The kinetic equivalent of DA is obtained and compared to the fluid prediction. The validity of the code and the observed deviations from fluid treatments are discussed.",

author = "Monojoy Goswami and H. Ramachandran",

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AB - In this paper we present a self-consistent kinetic simulation of a diffusion dominated bulk plasma region. Collisions have been modeled by a velocity-dependent Krook collision operator. The technique is capable of handling large systems - the results presented here are for systems 100λmfp in extent - yet retains the details of the edge physics present. The distribution functions for the trapped and the transiting orbits and their moments are obtained. The density and potential profiles inside the bulk shows overall agreement with ambipolar predictions. The kinetic equivalent of DA is obtained and compared to the fluid prediction. The validity of the code and the observed deviations from fluid treatments are discussed.

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Kinetic modeling of a one-dimensional, bounded plasma in the ambipolar regime

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