Dusty plasma near a conducting boundary with dust-neutral collisions

Using the usual fluid model the behavior of an unmagnetized dusty plasma near a conducting boundary with dust-neutral collisional effect is studied. The plasma consists of electrons, ions, negatively charged micron size dust particles, and neutrals. The Sagdeev potential for collisionless case is also calculated and found that it has different structure for plasmas with and without dusts. An expression for gradient of potential (i.e., the electric field) for collisional dusty plasma with dust–neutral collisions is calculated. The relation between the dust acoustic velocity and the collisionality has been discussed.