Shocks in multicomponent cylindrical and spherical Lorentzian plasmas |
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| Authors: | S Hussain N Akhtar S Mahmood |
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| Institution: | 1. Theoretical Plasma Physics Division, PINSTECH Nilore, Islamabad, 44000, Pakistan
2. Department of Physics and Applied Mathematics, PIEAS Nilore, Islamabad, 44000, Pakistan
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| Abstract: | Nonlinear cylindrical and spherical ion acoustic shocks have been studied in unmagnetized dissipative non-Maxwellian electron-positron-ion (e-p-i) plasmas. Modified Korteweg-de Vries Burgers (mKdVB) has been derived by using reductive perturbation method. Two level finite difference scheme is used with the help of Runge Kutta method to simulate the mKdVB. It is noticed that positron concentration, spectral indices of electrons and positrons, kinematic viscosity of ions significantly modifies the strength of shocks in cylindrical and spherical geometries. |
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