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Propagation of Multidimensional Ion-Acoustic Waves in Multicomponent Plasmas with Negative Ions

✍ Scribed by G. C. Das; K. M. Sen

Publisher: John Wiley and Sons
Year: 1993
Tongue: English
Weight: 498 KB
Volume: 33
Category: Article
ISSN: 0005-8025
DOI: 10.1002/ctpp.2150330104

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✦ Synopsis

We made an attempt to study the propagation of multidimensional ion-acoustic waves in multicomponent plasmas that include negative ions by deriving a Kodomtsev-Petviashvili (K-P) equation. The negative ions, as expected, introduce the precursor on the propagation because of which the need arises to derive a modified K-P equation with higher order non-linearity. We have examined a number of solitons like waves and supported the results by numerical simulation. The results reveal the existence of compressive and rarefactive solitary waves which are comparable with those of one-dimensional solitary waves in plasmas with negative ions except that multidimensional propagation of ion-acoustic waves is more involved than unidirectional propagation.

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