FusionPapers
図版検索トレンドwiki日本の研究
© 2026 FUSIONPAPERS
About法務情報
トップに戻る

Erosion of ITER-FEAT vertical targets during off-normal events

H Würz, S Pestchanyi, V Safronov, F Kappler2001年Fusion Engineering and DesignIF 1.7出版社

AbstractFor calculation of target erosion, the plasma shield formation and its shielding efficiency in front of the target have to be known. For this purpose the 2-D multifluid radiation magnetohydrodynamics (R-MHD) code FOREV-2 was developed. FOREV-2 validation is completed with numerical simulation of plasma shield dynamics and erosion of vertical graphite targets and comparison with experimental results obtained at the TRINITI Troitsk MK-200 UG plasma gun facility. The observed drift of target plasma along the surface of a vertical target in these experiments can be described by use of the classical Spitzer diffusion coefficient in the solution of the multi-dimensional magnetic field equations. Therefore, plasma turbulence does not occur in the experimental plasma shields. The observed upstream shift of the erosion profiles can be explained by the reradiation from the expanding plasma shield. Finally results of a damage analysis for tungsten vertical targets are presented for off-normal events typical for ITER-FEAT.

日本語訳

計算対象のプラズマシールド形成とその遮蔽効果を評価するためには、プラズマシールド前方の物理過程を正確に把握する必要がある。この目的のため、2次元多流体輻射磁気流体力学(MHD)コードFOREV-2が開発された。FOREV-2の検証は、TRINITI施設のMK-200 UGプラズマガンを用いた実験結果と、垂直黒鉛ターゲットにおけるプラズマシールド動力学および侵食の数値シミュレーション結果との比較により完了した。これらの実験で観測された垂直ターゲット表面に沿ったプラズマシールドのドリフトは、多次元磁場方程式の解法において古典的なSpitzer拡散係数を適用することで説明可能であり、したがって実験プラズマシールド内では乱流が発生しないことが示された。侵食プロファイルの上流方向へのシフトは、膨張するプラズマシールドからの再輻射によって説明できる。最後に、ITER-FEATに典型的な異常事象に対するタングステン垂直ターゲットの損傷解析結果を示す。

装置

iter高精度(タイトル一致)

wiki

ITERITER-FEAT
この論文にはまだAI要約がありません。

関連論文

Plasma shield dynamics and target erosion in disruption simulation experiments

2000Fusion Engineering and Design

Experimental study on plasma generated by a tapered coaxial accelerator and its damage effects on a tungsten target at different angles

2023Plasma Physics and Controlled Fusion

Application of powerful quasi-steady-state plasma accelerators for simulation of ITER transient heat loads on divertor surfaces

2007Plasma Physics and Controlled Fusion

Influence of beryllium plasma impurities on the erosion of graphite

2004Nuclear Fusion

Latest results of Eurofusion plasma-facing components research in the areas of power loading, material erosion and fuel retention

2022Nuclear Fusion

Scaling mechanisms of vapour/plasma shielding from laser-produced plasmas to magnetic fusion regimes

2014Nuclear Fusion

A high-fluence fusion neutron source

1989Fusion Engineering and Design

Two-dimensional electric current effects on a magnetized plasma in contact with a surface

2012Plasma Physics and Controlled Fusion

Experimental and simulation study of argon plasma transport in MPS-LD to increase electron density at target

2025Plasma Physics and Controlled Fusion

A pulsed high-current plasma beam under external and self-induced magnetic confinement in a linear device

2019Plasma Physics and Controlled Fusion