Effects of dust size distribution on dust acoustic waves in two-dimensional unmagnetized dusty plasma

Journal Article · Tue Apr 15 04:00:00 EDT 2008 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2903903· OSTI ID:21120275

Guangjun, He; Wenshan, Duan; Duoxiang, Tian ^[1]

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1. Department of Physics, Northwest Normal University, Lanzhou 730070 (China)

For unmagnetized dusty plasma with many different dust grain species containing both hot isothermal electrons and ions, both the linear dispersion relation and the Kadomtsev-Petviashvili equation for small, but finite amplitude dust acoustic waves are obtained. The linear dispersion relation is investigated numerically. Furthermore, the variations of amplitude, width, and propagation velocity of the nonlinear solitary wave with an arbitrary dust size distribution function are studied as well. Moreover, both the power law distribution and the Gaussian distribution are approximately simulated by using appropriate arbitrary dust size distribution functions.

• OSTI ID: 21120275
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 4 Vol. 15; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AMPLITUDES
DISPERSION RELATIONS
DISTRIBUTION FUNCTIONS
DUSTS
ELECTRONS
EQUATIONS
GAUSS FUNCTION
ION ACOUSTIC WAVES
IONS
NONLINEAR PROBLEMS
PLASMA
SIMULATION
SOLITONS
SOUND WAVES
TWO-DIMENSIONAL CALCULATIONS