The effect of dust size distribution on the damping of the solitary waves in a dusty plasma

Abstract

The effect of the dust size distribution on the damping rate of the solitary wave in a dusty plasma is investigated in the present paper. It is found that the damping rate increases as either the mean radius of dust grains increases or as the total number density of the dust grains increases. The damping rate is less for usual dusty plasma (about which the number density of the smaller dust grains is larger than that of the larger dust grains) than that of the unusual dusty plasma (about which the number density of the larger dust grains is larger than that of the smaller dust grains).

Dust ion acoustic solitary waves in a collisional dusty plasma with dust grains having Gaussian distribution

“…But in a dusty plasma they may be of different sizes. [15][16][17] For example, in space plasma, such as F and G rings of Saturn, cometary environments, interstellar galactic clouds, the dust grains are distributed by power law 17 and for laboratory dusty plasma sometimes they have a Gaussian distribution. 16 Roychowdhury et al 18 discussed how the dust charge fluctuation affects the phase velocity of a dust acoustic wave.…”

Study on high span motion characteristics and drag coefficient of airborne dust particles

“…The atmospheric environment on the earth's surface is filled with masses of dust particles with a size of 10 -7 ~10 -5 m produced by cosmic space, volcanic eruption and wind erosion (hereinafter referred to as particles) [1] , whose motion and distribution affect physical phenomena such as "electromagnetism, light and sound waves [2] [4] . In addition, living in an environment with a high concentration of dust particles for a long time will also cause damage to human health [5] .…”

Landau damping in a multi-component dusty plasma

“…[3][4][5][6][7][8][9][10] Many interesting phenomena have been found in dusty plasma. [11][12][13][14][15][16][17][18] One of the most remarkable features of dusty plasmas is the ability to sustain low-frequency waves. These waves are associated with the motion of the dust grains which are highly charged and massive.…”