Large quasineutral electron velocity oscillations in radial expansion of an ionizing plasma Phys. Plasmas 19, 092118 (2012) The electron geodesic acoustic mode Phys. Plasmas 19, 092113 (2012) Spatio-temporal evolution of the L→I→H transition Phys. Plasmas 19, 092306 (2012) Effect of trapping in a degenerate plasma in the presence of a quantizing magnetic field Phys. Plasmas 19, 092304 (2012) Additional information on Phys. Plasmas Damping solitary wave in dusty plasma is studied by considering the collision effect between dust grains and ions. It can be described by a KdV type equation in which a damping term of u 2 exist. It is found that both the amplitude and propagation velocity of the solitary wave decrease with time exponentially. Our results are compared with another KdV type equation with the damping term of u. It is noted that the damping rate of the KdV type equation with the damping term of u 2 is larger than that with the term of u. It is found that the damping rate is proportional to the collision frequency between dust grains and ions. V C 2012 American Institute of Physics.
The propagation of the solitary wave in a dusty plasma bounded in finite geometry has been investigated. By employing the reductive perturbation method, we obtain a quasi Korteweg-de Vries-type equation. It is noted that the larger the value of viscosity coefficient μ(0), the stronger the damping of the solitary wave. On the other hand, the larger the value of the radius of bounded geometry R, the weaker the damping of the solitary wave. It is also found that the quasisolitary wave exists. However, the solitary wave is a damping one, and it will disappear in the limited case of R→0 or μ(0)→+∞.
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