Title :
Nonplanar Dust-Ion Acoustic Solitary Waves in Warm Plasma With Superthermal Electrons
Author :
Eslami, Parvin ; Mottaghizadeh, Marzieh ; Pakzad, Hamid R.
Author_Institution :
Dept. of Phys., Ferdowsi Univ. of Mashhad, Mashhad, Iran
Abstract :
Using the reductive perturbation technique, a cylindrical/spherical Korteweg-de Vries (KdV) equation is derived for dust-ion acoustic solitary wave (DIASW) in an unmagnetized dusty plasma, whose constituents are adiabatic ion fluid, superthermal electrons, and negatively charged static dust particles. The solution of modified KdV equation in nonplanar geometry is numerically analyzed. The change of the DIASW structure due to the effect of the geometry, superthermal parameter, dust density, and ion temperature is investigated by numerical calculation of the cylindrical/spherical KdV equation.
Keywords :
Korteweg-de Vries equation; dusty plasmas; numerical analysis; perturbation theory; plasma density; plasma ion acoustic waves; plasma solitons; plasma temperature; DIASW structure; KdV equation; adiabatic ion fluid; cylindrical Korteweg-de Vries equation; dust density; ion temperature; negatively charged static dust particles; nonplanar dust-ion acoustic solitary waves; nonplanar geometry; numerical calculation; reductive perturbation technique; spherical Korteweg-de Vries equation; superthermal electrons; unmagnetized dusty plasma; warm plasma; Acoustics; Dusty plasmas; Equations; Geometry; Mathematical model; Solitons; Dust-ion-acoustic solitons; dusty plasmas; nonplanar geometry; reductive perturbation method; superthermal electrons;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2013.2278099
