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Analytic solutions of the two-dimensional transport equation in scrape-off-layer plasmas

S-I Itoh, M Yagi, K Itoh1996年Plasma Physics and Controlled FusionIF 2.2出版社

Exact analytic solutions of the two-dimensional (2D) heat transport equation in scrape-off-layer (SOL) plasmas are obtained for the plausible heat conductivity models. The temperature and the temperature-gradient dependences of parallel and perpendicular heat conductivities are taken into account as and , respectively. For arbitrary values of , and , the analytic solutions are found when separation of variables is allowed. The poloidal profile of the heat flow from the core across the separatrix is consistently parametrized. A weak dependence of the global scaling law on this profile is found, which gives a basis on which to use a point model.

日本語訳

スクレイプオフ層(SOL)プラズマにおける二次元(2D)熱輸送方程式の解析解が、妥当な熱伝導率モデルに対して得られた。平行および垂直方向の熱伝導率の温度依存性および温度勾配依存性が、それぞれ および として考慮されている。 および の任意の値に対して、変数分離が可能な場合に解析解が見出された。コアからセパラトリクスを横切る熱流のポロイダル分布は、一貫してパラメータ化されている。この分布に対する大域的スケーリング則の依存性は弱く、点モデルの使用の根拠が与えられる。

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Scrape-off layer
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