Nuclear Fusion (Jan 2023)
Modeling of plasma beta effects on the island divertor transport in the standard configuration of W7-X
- S. Xu,
- Y. Liang,
- A. Knieps,
- S. Zhou,
- Y. Feng,
- D. Reiter,
- Y. Suzuki,
- M. Jia,
- J. Geiger,
- F. Reimold,
- R. König,
- A. Dinklage,
- D. Harting,
- Y. Luo,
- P. Drews,
- M. Jakubowski,
- Y. Gao,
- E. Pasch,
- A. Pandey,
- A. Langenberg,
- N. Pablant,
- S. Brezinsek,
- E. Wang,
- S. Liu,
- H.M. Xiang,
- O. Neubauer,
- J. Huang,
- J. Cai,
- J. Yang,
- J. Liu,
- L. Liao,
- Y.C. Gao,
- the W7-X Team
Affiliations
- S. Xu
- ORCiD
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung-Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC) , 52425 Jülich, Germany
- Y. Liang
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung-Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC) , 52425 Jülich, Germany; International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China; Institute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, China
- A. Knieps
- ORCiD
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung-Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC) , 52425 Jülich, Germany
- S. Zhou
- ORCiD
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- Y. Feng
- ORCiD
- Max-Planck-Institute für Plasmaphysik , 17491 Greifswald/85748 Garching, Germany
- D. Reiter
- Institute for Laser and Plasma Physics, Heinrich-Heine-University , D-40225 Düsseldorf, Germany
- Y. Suzuki
- ORCiD
- Graduate School of Advanced Science and Engineering, Hiroshima University , 739-8527 Higashi-Hiroshima, Japan
- M. Jia
- ORCiD
- Institute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, China
- J. Geiger
- ORCiD
- Max-Planck-Institute für Plasmaphysik , 17491 Greifswald/85748 Garching, Germany
- F. Reimold
- Max-Planck-Institute für Plasmaphysik , 17491 Greifswald/85748 Garching, Germany
- R. König
- Max-Planck-Institute für Plasmaphysik , 17491 Greifswald/85748 Garching, Germany
- A. Dinklage
- ORCiD
- Max-Planck-Institute für Plasmaphysik , 17491 Greifswald/85748 Garching, Germany
- D. Harting
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung-Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC) , 52425 Jülich, Germany
- Y. Luo
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung-Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC) , 52425 Jülich, Germany
- P. Drews
- ORCiD
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung-Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC) , 52425 Jülich, Germany
- M. Jakubowski
- ORCiD
- Max-Planck-Institute für Plasmaphysik , 17491 Greifswald/85748 Garching, Germany
- Y. Gao
- ORCiD
- Max-Planck-Institute für Plasmaphysik , 17491 Greifswald/85748 Garching, Germany
- E. Pasch
- Max-Planck-Institute für Plasmaphysik , 17491 Greifswald/85748 Garching, Germany
- A. Pandey
- Max-Planck-Institute für Plasmaphysik , 17491 Greifswald/85748 Garching, Germany
- A. Langenberg
- ORCiD
- Max-Planck-Institute für Plasmaphysik , 17491 Greifswald/85748 Garching, Germany
- N. Pablant
- ORCiD
- Princeton Plasma Physics Laboratory , Princeton, NJ 08540, United States of America
- S. Brezinsek
- ORCiD
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung-Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC) , 52425 Jülich, Germany
- E. Wang
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung-Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC) , 52425 Jülich, Germany
- S. Liu
- Institute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, China
- H.M. Xiang
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung-Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC) , 52425 Jülich, Germany
- O. Neubauer
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung-Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC) , 52425 Jülich, Germany
- J. Huang
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung-Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC) , 52425 Jülich, Germany; International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- J. Cai
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung-Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC) , 52425 Jülich, Germany; Institute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, China
- J. Yang
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung-Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC) , 52425 Jülich, Germany; International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- J. Liu
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung-Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC) , 52425 Jülich, Germany; Institute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, China
- L. Liao
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung-Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC) , 52425 Jülich, Germany; Institute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, China
- Y.C. Gao
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung-Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC) , 52425 Jülich, Germany
- the W7-X Team
- DOI
- https://doi.org/10.1088/1741-4326/acc7b8
- Journal volume & issue
-
Vol. 63,
no. 6
p. 066005
Abstract
The influence of plasma beta effects on the edge plasma transport in the Wendelstein 7-X standard configuration is studied systematically by using EMC3-EIRENE combined with a 3D equilibrium code named HINT. The magnetic topology changes induced by plasma beta effects are significantly reflected in plasma transport behaviors and heat flux patterns on divertor targets. After validating the modeling strategy by comparisons with experimental data, the extended simulations for high performance plasmas show that the threshold separatrix density for accessing the power detachment is reduced in higher beta plasmas. Compared with the vacuum field case, the impurity radiation distributions with finite beta effects are modified in the magnetic island region. The divertor heat flux is distributed more evenly along the toroidal direction on the strike line at the vertical target. The strike line on the horizontal target moves towards the pumping gap with an increase in the plasma beta. In addition, the different pressure profiles with the same central beta also result in a modified heat flux pattern on the divertor targets.
Keywords
