PB3D: A new code for edge 3-D ideal linear peeling-ballooning stability

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• 作者：T. Weyens^a ; ^b ; ^{weyenst@gmail.com} ; R. Sá ; nchez^a ; G. Huijsmans^b ; ^d ; A. Loarte^c ; L. Garcí ; a^a
• 关键词：PB3D ; Ideal linear MHD stability ; Peeling-ballooning ; High-n ; Edge ; 3-D
• 刊名：Journal of Computational Physics
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：330
• 期：Complete
• 页码：997-1009
• 全文大小：814 K
• 卷排序：330

文摘

A new numerical code PB3D (Peeling-Ballooning in 3-D) is presented. It implements and solves the intermediate-to-high-n ideal linear magnetohydrodynamic stability theory extended to full edge 3-D magnetic toroidal configurations in previous work [1]. The features that make PB3D unique are the assumptions on the perturbation structure through intermediate-to-high mode numbers n in general 3-D configurations, while allowing for displacement of the plasma edge. This makes PB3D capable of very efficient calculations of the full 3-D stability for the output of multiple equilibrium codes. As first verification, it is checked that results from the stability code MISHKA [2], which considers axisymmetric equilibrium configurations, are accurately reproduced, and these are then successfully extended to 3-D configurations, through comparison with COBRA [3], as well as using checks on physical consistency. The non-intuitive 3-D results presented serve as a tentative first proof of the capabilities of the code.