Nonplanar electrostatic shock waves in an opposite polarity dust plasma with nonextensive electrons and ions

摘要: A rigorous theoretical investigation has been carried out on the propagation of nonplanar (cylindrical and spherical) dust-acoustic shock waves (DASHWs) in a collisionless four-component unmagnetized dusty plasma system containing massive, micron-sized, positively negatively charged inertial dust grains along with q (nonextensive) distributed electrons ions. The well-known reductive perturbation technique used to derive modified Burgers equation (which describes wave properties) its numerical solution. It observed that effects opposite polarity, nonextensivity ions, different parameters have significantly fundamental properties (viz., amplitude, width, etc.) waves. DASHWs geometry are found be from those one-dimensional planar geometry. findings our results this may useful understanding nonlinear features localized electrostatic disturbances both space laboratory plasmas.