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The MEMOS-U code description of macroscopic melt dynamics in fusion devices

E Thorén, S Ratynskaia, P Tolias, R A Pitts, the JET contributors, the EUROfusion MST1 team2021年Plasma Physics and Controlled FusionIF 2.2出版社

The MEMOS-U physics model, addressing macroscopic melt motion in large deformation and long displacement regimes, and its numerical schemes are presented. Discussion is centred on the shallow water application to the metallic melts induced by hot magnetized plasmas, where phase transitions and electromagnetic responses are pivotal. The physics of boundary conditions with their underlying assumptions are analysed and the sensitivity to experimental input uncertainties is emphasized. The JET transient tungsten melting experiment (Coenen et al 2015 Nucl. Fusion55 023010) is simulated to illustrate the MEMOS-U predictive power and to highlight key aspects of tokamak melt dynamics.

日本語訳

MEMOS-U物理モデルは、大変形および長距離移動の領域における巨視的溶融運動を扱うものであり、その数値スキームとともに提示される。議論は、相転移と電磁応答が極めて重要である、高温プラズマによって誘起される金属溶融体への浅水適用に焦点を当てている。境界条件の物理とその基礎となる仮定が分析され、実験入力の不確実性に対する感度が強調される。JET過渡タングステン溶融実験(Coenen et al 2015 Nucl. Fusion 023010)のシミュレーションを通じて、MEMOS-Uの予測能力が示され、トカマク溶融ダイナミクスの主要な側面が明らかにされる。

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