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Article Dans Une Revue Journal of Computational Physics Année : 2013

Numerical comparisons of gyrokinetic multi-water-bag models

David Coulette

Résumé

In this paper we present two new codes devoted to the study of ion temperature gradient (ITG) driven plasma turbulence in cylindrical geometry using a drift-kinetic multi-water- bag model for ion dynamics. Both codes were developed to complement the Runge-Kutta semi-lagrangian multi-water-bag code GMWB3D-SLC described in [1]. The CYLGYR code is an eigenvalue solver performing linear stability analysis from given mean radial profiles. It features three resolution schemes and three parallel velocity response models (fluid, multi-water-bag, continuous Maxwellian). The QUALIMUWABA quasilinear code is an initial value code allowing the study of zonal flow influence on drift-waves dynamics. Cross-validation test performed between the three codes show good agreement on both temporal and spatial characteristics of unstable modes in the linear growth phase.

Dates et versions

hal-00925099 , version 1 (07-01-2014)

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Citer

David Coulette, Nicolas Besse. Numerical comparisons of gyrokinetic multi-water-bag models. Journal of Computational Physics, 2013, 248, pp.1-32. ⟨10.1016/j.jcp.2013.03.065⟩. ⟨hal-00925099⟩
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