Based on a 13MA hybrid equilibrium of the Chinese Fusion Engineering Test Reactor (CFETR) tokamak, the MARS code is employed to investigate the effects of conducting wall geometry and plasma toroidal rotation on resistive wall mode (RWM) stability. A CFETR-relevant baseline conducting-wall configuration and controlled localized geometric variations on the low-field side (LFS), high-field side, and upper and lower poloidal regions are considered, together with a sheared toroidal rotation profile relevant to the CFETR 13 MA hybrid scenario and a uniform rotation profile for comparison. The results show that wall geometry variations on the LFS have a more significant influence on RWM stability than comparable modifications in other wall regions. RWM stability is also highly sensitive to plasma toroidal rotation. To clarify the role of rotation-profile structure, several sheared rotation profiles with different peak positions and radial widths are designed and analyzed. For both the uniform and designed sheared rotation profiles, outward elongation of the LFS conducting wall reduces the critical rotation frequency required for RWM stabilization relative to the conformal and the actual conducting wall configurations. These results demonstrate a nontrivial interplay between LFS conducting-wall geometry and plasma rotation in determining the RWM stability boundary in the CFETR 13 MA hybrid scenario.
中国核聚变工程试验堆（CFETR）托卡马克的13 MA混合运行方案平衡基础上，采用MARS程序研究导体壁几何形状和等离子体环向旋转对电阻壁模（RWM）稳定性的影响。考虑了一个与CFETR相关的基准导体壁构型，以及在低场侧（LFS）、高场侧以及上下极向区域的受控局部几何变化，同时结合了与CFETR 13 MA混合方案相关的剪切环向旋转剖面，并采用均匀旋转剖面作为对比。结果表明，低场侧壁几何变化对RWM稳定性的影响显著大于其他壁区域中类似修改的影响。RWM稳定性对等离子体环向旋转也高度敏感。为阐明旋转剖面结构的作用，设计并分析了多个具有不同峰值位置和径向宽度的剪切旋转剖面。对于均匀旋转剖面和所设计的剪切旋转剖面，低场侧导体壁向外延伸均降低了实现RWM稳定化所需的临界旋转频率，相较于共形壁和实际导体壁构型。这些结果揭示了在CFETR 13 MA混合方案中，低场侧导体壁几何形状与等离子体旋转之间在确定RWM稳定性边界方面存在非平凡的相互作用。