Stabilizing effect of enhanced resistivity on peeling-ballooning instabilities on EAST
收藏科学数据银行2022-11-24 更新2026-04-23 收录
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资源简介：
Previous stability analysis of NSTX equilibrium with lithium-conditioning demonstrates that the enhanced resistivity due to the increased effective charge number Zeff (i.e. increased impurity level) can provide a stabilizing effect on low-n edge localized modes (Banerjee et al 2017 Nucl. Fusion 24 054501). This paper extends the resistivity stabilizing effect to the intermediate-n peeling-ballooning (PB) instabilities with the linear stability analysis of EAST high-confinement mode equilibria in NIMROD two-fluid calculations. However, the resistivity stabilizing effect on PB instabilities in the EAST tokamak appears weaker than that found in NSTX. This work may give better insight into the physical mechanism behind the beneficial effects of impurity on the pedestal stability.
提供机构：
Debabrata Banerjee; Yingjie Chen; Institute of Plasma Physics; Guosheng Xu; Haolong Li; 中国科学技术大学; Shenzhen University; Hefei Institutes of Physical Science; Yifeng Wang
创建时间：
2022-10-23
