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Simulation of plasma turbulence in scrape-off layer conditions: the GBS code, simulation results and code validation

P Ricci, F D Halpern, S Jolliet, J Loizu, A Mosetto, A Fasoli, I Furno, C Theiler2012年Plasma Physics and Controlled FusionIF 2.2出版社

Based on the drift-reduced Braginskii equations, the Global Braginskii Solver, GBS, is able to model the scrape-off layer (SOL) plasma turbulence in terms of the interplay between the plasma outflow from the tokamak core, the turbulent transport, and the losses at the vessel. Model equations, the GBS numerical algorithm, and GBS simulation results are described. GBS has been first developed to model turbulence in basic plasma physics devices, such as linear and simple magnetized toroidal devices, which contain some of the main elements of SOL turbulence in a simplified setting. In this paper we summarize the findings obtained from the simulation carried out in these configurations and we report the first simulations of SOL turbulence. We also discuss the validation project that has been carried out together with the GBS development.

日本語訳

ドリフト低減ブラギンスキー方程式に基づくグローバル・ブラギンスキー・ソルバー(GBS)は、トカマクコアからのプラズマ流出、乱流輸送、および容器での損失の間の相互作用という観点から、スクレープオフ層(SOL)のプラズマ乱流をモデル化することができる。モデル方程式、GBS数値アルゴリズム、およびGBSシミュレーション結果について説明する。GBSは、SOL乱流の主要な要素のいくつかを単純化された設定で含む、線形および単純な磁化トロイダル装置などの基礎プラズマ物理装置における乱流をモデル化するために最初に開発された。本論文では、これらの構成で実施されたシミュレーションから得られた結果を要約し、SOL乱流の最初のシミュレーションを報告する。また、GBSの開発と並行して実施された検証プロジェクトについても議論する。

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Scrape-off layerPlasma turbulence
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