Computer Science – Sound
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..799..506m&link_type=abstract
NEW VISTAS IN DUSTY PLASMAS: Fourth International Conference on the Physics of Dusty Plasmas. AIP Conference Proceedings, Volum
Computer Science
Sound
Dusty Plasmas, Plasma Solitons, Acoustic Wave Propagation, Numerical Analysis, Dusty Or Complex Plasmas, Plasma Crystals, Solitons, Bgk Modes, Nonlinear Phenomena: Waves, Wave Propagation, And Other Interactions, Sound Waves
Scientific paper
The Sagdeev potential method is used to investigate the non-linear propagation of the dust-acoustic wave in a weakly non-ideal dusty plasma comprising a negatively charged dust fluid, Boltzmann electrons and non-thermal ions which are characterised by a non-thermal parameter α. The non-ideal effects of volume reduction and attractive cohesive forces are introduced by adopting the van der Waal's equation of state for the dust fluid. Both supersonic and subsonic solitons are found to exist for a non-ideal dusty plasma and comparisons are made with the ideal case. The upper limit of the range of values of the non-thermal parameter for which soliton solutions are admissible, is examined as a function of the non-ideal parameters.
Bharuthram R.
Maharaj S. K.
Pillay Sadhasivan R.
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