Eur. Phys. J. AP 17, 45-52 (2002)
https://doi.org/10.1051/epjap:2001004

Contribution of reversed shear in reducing the anomalous transport

¹ Laboratoire de Physique Théorique, Faculté des Sciences Ain Chok, BP 5666, Maarif, Casablanca, Morocco
² Laboratoire de Physique Théorique et de la Matière Condensée, Faculté des Sciences Ben M'Sike, Casablanca, Morocco

Corresponding author: saifaoui@facsc-achok.ac.ma

Received: 26 January 2001
Revised: 12 April 2001
Accepted: 3 September 2001
Published online: 15 January 2002

Abstract

In this paper we have studied the contribution of reversed shear in reducing the anomalous transport in a Tokamak using both an analytical approach and simulations. We have used a special model for the drift wave fields. Comparison between particles trajectories for normal and negative shear is carried out. The diffusion coefficient of particles for the two cases; normal and reversed shear is evaluated.