Investigation of dust ion acoustic shock and solitary waves in a viscous dusty plasma

Abstract A viscous dusty plasma containing Kappa-( κ − ) distributed electrons, positive warm ions, and constant negatively charged dust grains with viscosity have been considered to study the modes of dust-ion-acoustic waves (DIAWs) theoretically numerically. The derivations basic features shock solitary different parameters like Mach number, finite temperature coefficient, unperturbed streaming velocity, kinematic dust, etc this DIAWs mode performed. Considering dynamical equation from Korteweg-de Vries(KdV) equation, a phase portrait has drawn position saddle point or col. center also discussed. This type can be found in celestial bodies. results research work applied properties various astrophysical situations where -distributive electrons are present careful modification same model help us understand nature laboratory as well.