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Damped diocotron quasi-modes of non-neutral plasmas and inviscid fluids

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Permanent URL	http://hdl.lib.byu.edu/1877/1272
Title	Damped diocotron quasi-modes of non-neutral plasmas and inviscid fluids
BYU Creator	Rasband, S. Neil Spencer, Ross L.
Keywords	quasi-modes; dicotron; plasma; inviscid fluid
Description/Abstract	Computations of damped diocotron oscillations (quasi-modes) are described for non-neutral plasmas and inviscid fluids. The numerical method implements a suggestion made by Briggs, Daugherty, and Levy some 25 years ago [Phys. Fluids 13, 421 (1970)] to push the branch line that forms the continuum into the complex w-plane by solving the mode equation in the complex r-plane. For the special case of power-law density profiles the calculation finds the same quasi-mode frequencies found recently by Corngold [Phys. Plasmas 2, 620 (1995)]. It is found that the feature of the continuum eigenfunctions which indicates the presence of a nearby quasi-mode is continuity of the derivative of the regular part of the eigenfunctions near the singularity. The evolution of Rayleigh modes, found in density profiles with steps, is also studied as the density steps are smoothed.
Source	Spencer, Ross L. and Neil S. Rasband."Damped diocotron quasi-modes of non-neutral plasmas and inviscid fluids." Physics of Plasmas 4 (1997): 53-60.;
Publisher	AIP
Date Original	1997-01-01
Language	English eng en
Publication Type	Articles
Type	Text
Format	application/pdf
Owning Institution	Brigham Young University
BYU College	College of Physical and Mathematical Sciences
BYU Department	Physics and Astronomy
Copyright Status	(c) 1997 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in The Journal of Chemical Physics and may be found at http://link.aip.org/link/?PHPAEN/4/53/1;
Copyright Use Information	http://www.lib.byu.edu/generic_copyright.html

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