Abstract
A fluid model is considered to study the nonlinear dust- acoustic waves (DAW) in magnetized dusty plasma. The model consists of dust articles having negative charge, nonthermal ions, and Boltzmann electrons. Sagdeev Potential equation is derived in the form of an energy integral by applying nonperturbative approach. The pseudopotential (Sagdeev potential) profile is analyzed to study the characteristic of the solitary waves. The study has been made related to the transition of the DAW and the corresponding characters by observing the variation of amplitudes and width of the solitons with Mach number, temperature ratio, density ratio, concentration of nonthermal ions, and the direction cosine. The parametric ranges are estimated numerically to confirm the existence of solitary waves of arbitrary amplitude.
Highlights
Nonlinear phenomena in plasma dynamics are most rapid growing branch in both theoretical and experimental research in plasma
We have studied the properties of dust acoustic solitary waves in magnetized plasma in presence of dust grains having negative charge, nonthermal ions, Math
In order to study the dust-acoustic waves in magnetized plasma propagating obliquely to the magnetic field, we consider a fluid model consisting of the equations of continuity and momentum of dust having negative charge, nonthermal ions and Maxwellian electrons as follows:
Summary
Nonlinear phenomena in plasma dynamics are most rapid growing branch in both theoretical and experimental research in plasma. The effect of ion temperature in dust acoustic waves was numerically analyzed by Rahman et al, The conditions of dusty plasma have been found in most of the space as well as laboratory plasma, which helps in growing the branch very fast. This leads to the study of various features of nonlinear behavior of plasma, viz. We have studied the properties of dust acoustic solitary waves in magnetized plasma in presence of dust grains having negative charge, nonthermal ions, Math. The study has been made related to the transition of subsonic rarefactive and compressive solitary waves and its corresponding characteristics that vary with the parameters of the pseudopotential derived from the basic equations by nonperturbative approach
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