Numerically stable method for kinetic electrons in gyrokinetic particle-in-cell simulation of toroidal plasmas

Abstract

The direct implicit method with a second-order implicit integration scheme is formulated for and applied to the electron parallel nonlinearity in global electrostatic gyrokinetic particle-in-cell simulations of toroidal fusion plasmas. The method shows improved numerical accuracy and stability properties compared to the direct implicit method with a first-order integration scheme. The conservation of total energy and toroidal angular momentum are analyzed by both techniques and the results are presented. 2013 Elsevier Inc. All rights reserved.

DOI: 10.1016/j.jcp.2012.12.033

Extracted Key Phrases

4 Figures and Tables

Cite this paper

@article{Korpilo2013NumericallySM, title={Numerically stable method for kinetic electrons in gyrokinetic particle-in-cell simulation of toroidal plasmas}, author={Tuomas Korpilo and Jukka A. Heikkinen and Salomon J. Janhunen and Timo P. Kiviniemi and S. Leerink and Francisco Ogando}, journal={J. Comput. Physics}, year={2013}, volume={239}, pages={22-29} }