Nonlinear plasma voids (holes) in a charge-varying dusty plasma

Nonlinear large amplitude plasma voids are investigated in a charge-varying dusty plasma. Numerical solutions of highly nonlinear equations are carried out including dust charging and ion trapping. The results complement previously published results on this problem. It is found that under certain conditions the effect of dust charge variation can be quite important. In particular, it may be noted that the dust charge variation leads to an additional enlargement of the nonlinear plasma voids