Plasma and Fusion Research

Volume 3, S1061 (2008)

Regular Articles

Recent Progress in NEO-2 — A Code for Neoclassical Transport Computations Based on Field Line Tracing
Winfried KERNBICHLER1), Sergei V. KASILOV1,2), Georg O. LEITOLD1), Viktor V. NEMOV1,2) and Klaus ALLMAIER1)
1)
Association EURATOM-ÖAW, Institut für Theoretische Physik - Computational Physics, TU Graz, Petersgasse 16, A-8010 Graz, Austria
2)
Institute of Plasma Physics, National Science Center “Kharkov Institute of Physics and Technology”, Akademicheskaya Str. 1, 61108 Kharkov, Ukraine
(Received 16 November 2007 / Accepted 13 February 2008 / Published 4 August 2008)

Abstract

NEO-2 is a code for the computation of neoclassical transport coefficients and current drive efficiency in toroidal devices which is based on the field line integration technique. The possibility to use the complete linearized collision integral is realized in this code. In this report the results of comparison of the full matrix of transport coefficients in a tokamak with analytical models are presented. Effects of simplifications of the linearized collision model (e.g., reduction to a Lorentz model) are studied in order to provide a comparison with various momentum correction techniques used for the computation of transport coefficients in stellarators.

Keywords

neoclassical transport, linearized collision operator

DOI: 10.1585/pfr.3.S1061

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References

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This paper may be cited as follows:

Winfried KERNBICHLER, Sergei V. KASILOV, Georg O. LEITOLD, Viktor V. NEMOV and Klaus ALLMAIER, Plasma Fusion Res. 3, S1061 (2008).