Nonplanar electron acoustic shock waves |
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Authors: | Biswajit Sahu Mouloud Tribeche |
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Institution: | 1. Department of Mathematics, West Bengal State University, Barasat, Kolkata 700126, India;2. Plasma Physics Group, Theoretical Physics Laboratory, Faculty of Sciences-Physics, University of Bab-Ezzouar, U.S.T.H.B B.P. 32, El Alia, Algiers 16111, Algeria |
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Abstract: | The properties of cylindrical and spherical electron acoustic shock waves (EASWs) in an unmagnetized plasma consisting of cold electrons, immobile ions and Boltzmann distributed hot electrons are investigated by employing the reductive perturbation method. A Korteweg–de Vries Burgers (KdVB) equation is derived and its numerical solution is obtained. The effects of several parameters and ion kinematic viscosity on the basic features of EA shock waves are discussed in nonplanar geometry. It is found that nonplanar EA shock waves behave quite differently from their one-dimensional planar counterpart. |
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Keywords: | Electron acoustic waves Shock waves |
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