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Wakes in inhomogeneous plasmas

Kompaneets, R. and Ivlev, Alexei and Nosenko, V. and Morfill, Gregor E. (2014) Wakes in inhomogeneous plasmas. Physical Review E, 89, 043108-1. American Physical Society. DOI: 10.1103/PhysRevE.89.043108 ISSN 1539-3755

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Official URL: http://journals.aps.org/pre/abstract/10.1103/PhysRevE.89.043108

Abstract

The Debye shielding of a charge immersed in a flowing plasma is an old classic problem. It has been given renewed attention in the last two decades in view of experiments with complex plasmas, where charged dust particles are often levitated in a region with strong ion flow. Efforts to describe the shielding of the dust particles in such conditions have been focused on the homogeneous plasma approximation, which ignores the substantial inhomogeneity of the levitation region.We address the role of the plasma inhomogeneity by rigorously calculating the point charge potential in the collisionless Bohm sheath. We demonstrate that the inhomogeneity can dramatically modify the wake, making it nonoscillatory and weaker.

Item URL in elib:https://elib.dlr.de/95358/
Document Type:Article
Title:Wakes in inhomogeneous plasmas
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kompaneets, R.Max-Planck-Institut für extraterrestrische Physik, Giessenbachstrasse, 85748 Garching, GermanyUNSPECIFIED
Ivlev, AlexeiMax-Planck-Institut für extraterrestrische Physik, Giessenbachstrasse, 85748 Garching, GermanyUNSPECIFIED
Nosenko, V.v.nosenko (at) dlr.deUNSPECIFIED
Morfill, Gregor E.Max-Planck-Institut für extraterrestrische Physik, Giessenbachstrasse, 85748 Garching, GermanyUNSPECIFIED
Date:2014
Journal or Publication Title:Physical Review E
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:89
DOI :10.1103/PhysRevE.89.043108
Page Range:043108-1
Publisher:American Physical Society
ISSN:1539-3755
Status:Published
Keywords:ion wake, inhomogeneous plasma
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Komplexe Plasmen / Laboratory research
Location: Oberpfaffenhofen
Institutes and Institutions:Research Group Complex Plasma
Deposited By: Nosenko, Volodymyr
Deposited On:23 Feb 2015 16:17
Last Modified:16 Feb 2016 05:04

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