SOL parallel momentum loss in ASDEX Upgrade and comparison with SOLPS
SOL parallel momentum loss in ASDEX Upgrade and comparison with SOLPS
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DOI：
10.1016/j.nme.2017.01.026
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发表时间：
2017-03
影响因子：
2.6
通讯作者：
I. P. Pérez;A. Scarabosio;M. Groth;M. Wischmeier;F. Reimold
中科院分区：
文献类型：
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作者：
I. P. Pérez;A. Scarabosio;M. Groth;M. Wischmeier;F. Reimold
ASDEX升级等离子体与各种不同的等离子体条件的改进诊断的H模式数据库进行了分析，研究在刮除层（SOL）的动量去除。一个强大的减少，高达100倍，观察到的电子压力接近分界线。使用SOLPS5.0代码包进行的L模式和H模式等离子体模拟集支持对实验观察结果的解释（例如，明显的动量增益，强烈的径向位置依赖性），并有助于澄清离子中性相互作用的作用。实验数据反过来又被用来检查SOLPS的预测，这些预测在数量上有所不同，这表明代码仍然没有成功地捕获重要的物理信息。
An H-mode database of ASDEX Upgrade plasmas with improved diagnostics for a variety of different plasma conditions has been analysed to study the momentum removal in the Scrape-Off Layer (SOL). A strong reduction, up to a factor of 100, of the electron pressure is observed close to the separatrix. Sets of L-mode and H-mode like plasma simulations with the SOLPS5.0 code package have supported the interpretation of the experimental observations (e.g., apparent momentum gain, strong radial position dependence) and helped to clarify the role of ion-neutral interactions. The experimental data are in turn used to check the SOLPS predictions, which differ quantitatively, suggesting that important pieces of physics are still not successfully captured by the code.