A multi-species collisional operator for full-F global gyrokinetics codes : Numerical aspects and validation with the GYSELA code - Archive ouverte HAL
Pré-Publication, Document De Travail Année : 2018

A multi-species collisional operator for full-F global gyrokinetics codes : Numerical aspects and validation with the GYSELA code

Nicolas Bouzat
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Résumé

A linearized multi-species collision operator valid for arbitrary masses and charges has been developed and implemented in the gyrokinetic code GYSELA [9]. This operator has all the required properties : it conserves particles, total momentum and energy, fulfills the Boltzmann H theorem and recovers neoclassical results. This operator takes into account both pitch angle scattering and energy diffusion while operting in the v , µ phase space. Derivatives with respect to the magnetic moment are treated using a projection on a set of orthogonal polynomials. The numerical aspects of the implementation are detailed and a set of physical benchmarks allows a verification of the properties of the operator.
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Dates et versions

hal-01687586 , version 1 (18-01-2018)

Identifiants

  • HAL Id : hal-01687586 , version 1

Citer

Peter Donnel, Xavier Garbet, Yanick Sarazin, Virginie Grandgirard, Yuuichi Asahi, et al.. A multi-species collisional operator for full-F global gyrokinetics codes : Numerical aspects and validation with the GYSELA code. 2018. ⟨hal-01687586⟩
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