A complex plasma medium (containing Cairns nonthermal electron, adiabatically warm inertial ion, and stationary positively charged dust (PCD) species (making a system very complex) is considered. The effects of PCD species, electron adiabatic ion-temperature on ion-acoustic (IA) solitary waves (SWs) double layers (DLs) are investigated by the pseudo-potential approach, which valid for arbitrary...

Theoretical studies of dusty plasmas have been performed by focusing attention principally on collective phenomena and on grain motion. This thesis consists of a collection of seven published papers that explore both the collective behavior of a complex plasma system as well as the dynamics of grains in plasmas. In paper 1, a mechanism that explains the energy gain which leads to the self excit...

By scattering particles and causing dissipation, waves in a collisionless shock play a role similar to collisions in an ordinary gas. In describing the waves and instability that occur near a shock three regions must be considered: (1) the transition region, (2) the upstream region, and (3) the downstream region. The transition region is usually characterized by an abrupt broadband burst of ele...

We consider a hydrodynamic model of quantum dusty plasma. prove mathematically that the resulting dust ion-acoustic plasma waves present property being conservative on average. Furthermore, we test this numerically, confirming its validity. Using standard techniques from study dynamical systems, as, for example, Lyapunov characteristic exponents, investigate chaotic dynamics and show numericall...

Repeated, self-excited dust acoustic shock waves (DASWs) have been observed in a dc glow discharge dusty plasma using high-speed video imaging. Two major observations are reported: (1) The self-steepening of a nonlinear dust acoustic wave (DAW) into a saw-tooth wave with sharp gradient in dust density, very similar to those found in numerical solutions of the fully nonlinear fluid equations for...

The omnipresence of dust particulates in space and astrophysical plasmas has been attracting numerous researchers to study the collective excitation propagation dynamics different eigen-mode structures diversifed astrocosmic circumstances for years. It includes planetary rings, interplanetary space, cometary tails, asteroid zones, atmospheres, etc. ubiquitous charged possess degrees dynamic fre...

Supersolitons are a recent addition to the literature on large-amplitude solitary waves in multispecies plasmas. They are distinguished from the usual solitons by their associated electric field profiles which are inherently distinct from traditional bipolar structures. In this paper, dust-ion-acoustic modes in a dusty plasma with stationary negative dust, cold fluid protons, and nonthermal ele...