Nonlinear dust-acoustic solitary waves and shocks in dusty plasmas with a pair of trapped ions

作者：Adhikary Nirab C^*; Misra Amar P; Deka Manoj K; Dev Apul N

来源：Physics of Plasmas, 2017, 24(7): 073703.

DOI：10.1063/1.4989732

The propagation characteristics of small-amplitude dust-acoustic (DA) solitary waves (SWs) and shocks are studied in an unmagnetized dusty plasma with a pair of trapped positive and negative ions. Using the standard reductive perturbation technique with two different scalings of stretched coordinates, the evolution equations for DA SWs and shocks are derived in the form of complex Korteweg-de Vries and Burgers' equations. The effects of the dust charge variation, the dust thermal pressure, and the ratios of the positive to negative ion number densities as well as the free to trapped ion temperatures on the profiles of SWs and shocks are analysed and discussed. Published by AIP Publishing.

• 出版日期2017-7