Coexistence of DA shock and solitary waves in dusty plasmas with two-temperature-ions

Abstract

The nonlinear propagation characteristics of cylindrical and spherical shock waves in an unmagnetized dusty plasma comprising of inertial negative dust, Boltzmann electrons, and ions with two distinct temperatures, are rigorously investigated by deriving the modified Burgers (mB) equation. Later, the nonplanar KdV-Burgers (nKdVB) equation is derived to show the presence of dispersive and dissipative effects on nonlinear waves. The standard reductive perturbation method is employed to derive the mB and nKdVB equations. The basic features of nonplanar dustacoustic (DA) waves (viz. amplitude, profile structure, etc.) are discussed. The present analysis can play important role to understand the basic features of nonlinear electrostatic waves in astrophysical plasmas.

Numerical solution and characteristic study of time-fractional shocks collision

“…For strong dissipation, monotonic shocks exist, while for weak dissipation, the shock waves appear as oscillatory shock waves [15,16]. Hasin et al [17] studied the characteristic of nonlinear propagation of cylindrical and spherical shock waves in an unmagnetized dusty plasma. They discovered the basic features of the non-planer dust acoustic wave viz amplitude, steepness and profile structure.…”