Plasma beta effects on the edge magnetic field structure and divertor heat loads in Wendelstein 7-X high-performance scenarios

被引：9

作者：

Knieps, A. ^{[1
]}

Suzuki, Y. ^{[2
,5
,6
]}

Geiger, J. ^{[3
]}

Dinklage, A. ^{[3
]}

Zhou, S. ^{[1
,4
]}

Rahbarnia, K. ^{[3
]}

Schilling, J. ^{[3
]}

Neuner, U. ^{[3
]}

Thomsen, H. ^{[3
]}

Jakubowski, M. ^{[3
]}

Koenig, R. ^{[3
]}

Endler, M. ^{[3
]}

Gao, Y. ^{[3
]}

Sitjes, A. Puig ^{[3
]}

Niemann, H. ^{[3
]}

Beurskens, M. ^{[3
]}

Bozhenkov, S. ^{[3
]}

Liang, Y. ^{[1
,4
]}

机构：

[1] Forschungszentrum Julich, Inst Energie & Klimaforsch Plasmaphys, Trilateral Euregio Cluster TEC, D-52425 Julich, Germany

[2] Hiroshima Univ, Grad Sch Adv Sci & Engn, Higashihiroshima 7398527, Japan

[3] Max Planck Inst Plasma Phys, D-17491 Greifswald, Germany

[4] Huazhong Univ Sci & Technol, State Key Lab Adv Electromagnet Engn & Technol, Sch Elect & Elect Engn, Int Joint Res Lab Magnet Confinement Fus & Plasma, Wuhan 430074, Peoples R China

[5] Natl Inst Fus Sci, Toki, Gifu, Japan

[6] Grad Univ Adv Studies, Sokendai, Hayama, Kanagawa, Japan

来源：

NUCLEAR FUSION | 2022年 / 62卷 / 02期

基金：

中国国家自然科学基金;

关键词：

MHD equilibrium; Wendelstein; 7-X; island divertor; fieldline diffusion; heat loads; STELLARATOR; DESIGN;

D O I：

10.1088/1741-4326/ac3a18

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

To support the scenario design for the upcoming long-pulse high-performance campaign of Wendelstein 7-X, this work presents a study of high-beta full-field 3D equilibria obtained with the HINT code. For three magnetic configurations of different edge-iota, the effects of both overall pressure and pressure profile changes on the magnetic topology are analyzed. Anisotropic diffusion modeling is used to obtain estimates of the conductive heat load distribution both on the divertor and other plasma-facing components in finite-beta magnetic configurations. For the magnetic standard configuration, limitations of the model are outlined by comparing measured and predicted heatloads by performing a linear regression of the main strike-line position against various plasma parameters in both the experimental and the simulated device.

引用

页数：26

共 35 条

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