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Kinetic transport properties of a bumpy torus with finite radial ambipolar field

D.A. Spong, E.G. Harris, C.L. Hedrick1979年被引用 20Nuclear FusionIF 3出版社

Neoclassical transport coefficients for a bumpy torus have been calculated by solving a bounce-averaged drift kinetic equation locally in radius. In contrast with previous work, where the ambipolar field was assumed to be large relative to the plasma thermal energy (ejϕ/kTj ≫ 1), finite electric fields are considered here [ejϕ/kTj = 0(1)]. Both the Landau operator and the particle and energy-conserving BGK model operator have been used, and a comparison of the two sets of results indicates reasonable agreement. The resulting transport coefficients exhibit a strong dependence on the ambipolar field and on plasma collisionality; in the large-field limit, the present results correlate closely with earlier work.

日本語訳

ネオクラシカル輸送係数は、バンプトーラスに対して、半径方向に局所的にバウンス平均化されたドリフト運動論方程式を解くことによって計算された。先行研究では、アンビポーラ場がプラズマの熱エネルギーに対して大きいと仮定されていたが(ejϕ/kTj ≫ 1)、ここでは有限の電場が考慮されている[ejϕ/kTj = 0(1)]。ランダウ演算子と、粒子およびエネルギー保存型BGKモデル演算子の両方が使用され、2組の結果の比較は妥当な一致を示している。得られた輸送係数は、アンビポーラ場とプラズマの衝突度に強く依存し、大きな場の極限では、現在の結果は先行研究と密接に相関している。

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