https://doi.org/10.1140/epjd/e2016-70111-0
Regular Article
Effect of q-nonextensive distribution of electrons on the sheath in dusty plasma
1 National School of Applied Sciences, B.P. 03, Ajdir Al-Hoceima, Morocco
2 University Mohammed I, B.P. 717, 60000 Oujda, Morocco
3 Laboratory of Physics of Matter and Radiations, Department of Physics, Faculty of Science, University Mohammed I, B.P. 717, 60000 Oujda, Morocco
a
e-mail: driouchismael@yahoo.fr
Received: 17 February 2016
Received in final form: 15 August 2016
Published online: 17 January 2017
In this paper, a sheath model has been developed to investigate the characteristics of a magnetised dusty plasma sheath in the presence of a q-nonextensive distribution of electrons. For this, we have established a one-dimensional fluid model. The electrons are considered following the q-nonextensive distribution (i.e. the deflection of the electrons for their Maxwell-Boltzmann distribution); however the ions and dust grains are described by fluid equations. According to multi-fluid equations and some dimensionless variables, the dimensionless equations are obtained and solved numerically. The effect of the nonextensivity q-parameter on the plasma sheath parameters is examined. A significant change is observed in the quantities characterising the sheath when the electrons evolve far away from their thermodynamic equilibrium Maxwellian (q = 1) assumption.
Key words: Plasma Physics
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2017
