Volume 42, Issue 1, 2021
Saturday, December 5, 2020
The nonlinear propagation of dust-acoustic (DA) waves in an unmagnetized dusty and collisional (damped) plasmas (consisting of nonthermal electrons and ions, and mobile negative dust) has been investigated by employing the reductive perturbation technique. It has been found that the presence of dust-ion collisions, the effects of nonthermal electrons and ions, and mobile dust have signiﬁcantly modiﬁed the basic features of nonlinear DA waves. The results of this paper are useful in understanding the basic nonlinear feature of DA wave propagation in laboratory and space dusty electronegative plasmas.