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Creation of Spatial Charge Separation in Plasmas with Rigorously Charge-Conserving Local Electromagnetic Field Solvers

Othmer, C. and Motschmann, U. and Glassmeier, K.H. (2002) Creation of Spatial Charge Separation in Plasmas with Rigorously Charge-Conserving Local Electromagnetic Field Solvers. Journal of Computational Physics, 180 (1), pp. 99-109.

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Abstract

Charge-conserving local field solvers are widely used in today's electromagnetic plasma simulations. As in such codes the charge does not appear explicitly, the injection of new particles into the computational volume and their removal upon reaching the boundaries requires some cautiousnes. While for quasineutral plasmas a particle injection in accordance with charge conservation can be realized quite easily, the injection of noneutral plasmas with spatially separated electron and ion sources might lead to the emergenceof unwanted divergences in the electric field. With a three-dimensional charge-conserving electromagnetic plasma simulation, we evaluate several injection schemes of nonneutral plasmas and present a method the rigorously respects conservation of charge and thus allows injection of nonneutral plasmas without producing unwanted divergences in the electric field.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2002,
Title:Creation of Spatial Charge Separation in Plasmas with Rigorously Charge-Conserving Local Electromagnetic Field Solvers
Authors:
AuthorsInstitution or Email of Authors
Othmer, C.Institute for Geophysics and Meteorology, Technical University of Braunschweig
Motschmann, U.UNSPECIFIED
Glassmeier, K.H.Institute for Geophysics and Meteorology, Technical University of Braunschweig
Date:2002
Journal or Publication Title:Journal of Computational Physics
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:180
Page Range:pp. 99-109
Status:Published
Keywords:partial-difference equations, initial-boundary value problem, plasma physics, electromagnetic, electron and ion beams
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):UNSPECIFIED
Location: Berlin-Adlershof
Institutes and Institutions:Institut für Weltraumsensorik und Planetenerkundung
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 19:03

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