Various Aspects of Dust-Acoustic Solitary Waves (DAWs) in Inhomogeneous Plasmas

Abstract

Dusty plasma offers an extensive study of space and astrophysical environments. In this chapter, we have studied some of the basic properties of dusty plasmas, interaction of dust and plasma particles, and the effect of intramolecular attraction and repulsion between these plasma and dust grain particles. During these investigations, we have discussed a few basic relations of dusty plasma and the effect of dust particles on the nonlinear wave structures in dusty plasma. Here, we have also studied the various aspects of dust-acoustic solitary waves (DASWs) in inhomogeneous plasma. To study and analyze the various aspects of DAWs in inhomogeneous plasmas, the governing fluid equations of plasmas are considered to derive the Korteweg de-Vries (KdV) equation. The solution of the KdV equation is obtained as soliton or solitary wave. The solitary wave solution indicates the various characteristics of DASWs in the inhomogeneous dusty plasma. In this chapter, a systematic and extensive study on DAWs is also included for the inhomogeneous and unmagnetized plasmas.