Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
759222 | Communications in Nonlinear Science and Numerical Simulation | 2010 | 7 Pages |
Abstract
The linear dispersion relation and a modified variable coefficients Korteweg-de Vries (MKdV) equation governing the three-dimensional dust acoustic solitary waves are obtained in inhomogeneous dusty plasmas comprised of negatively charged dust grains of equal radii, Boltzmann distributed electrons and nonthermally distributed ions. The numerical results show that the inhomogeneity, the nonthermal ions, the external magnetic field and the collision have strong influence on the frequency and the nonlinear properties of dust acoustic solitary waves and both dust acoustic solitary holes (soliton with a density dip) and positive solitons (soliton with a density hump) are excited.
Keywords
Related Topics
Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
Li-Ping Zhang, Ju-Kui Xue,