Abstract
M3D-C1, a code for solving the linear and non-linear extended-MHD equations in toroidal geometry, is used to model pellet ELM triggering in DIII-D ITER-like plasmas. Understanding of the physical mechanisms of ELM triggering and improved modeling are required for confident extrapolation to ITER and beyond. M3D-C1 results run in linear 2D mode show that the localized perturbation is due to the pellet destabilizing peeling-ballooning modes. Calculations of linear peeling-ballooning stability as a function of pellet size suggest that a 2D pellet density ring underestimates the effects of the pellet.
| Original language | English |
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| State | Published - 2019 |
| Event | 46th European Physical Society Conference on Plasma Physics, EPS 2019 - Milan, Italy Duration: Jul 8 2019 → Jul 12 2019 |
Conference
| Conference | 46th European Physical Society Conference on Plasma Physics, EPS 2019 |
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| Country/Territory | Italy |
| City | Milan |
| Period | 07/8/19 → 07/12/19 |
Funding
This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, or product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. References [1] H. Zohm, Plasma Phys. Control. Fusion 38, 105-128 (1996). [2] T. Evans, et al., Nature Physics 2, 419-423 (2006). [3] D. Mansfield, et al., Nuclear Fusion 53 (2013). [4] L. Baylor, et al., Nuclear Fusion 47, 443-448 (2007). [5] L. Baylor, et al., Physical Review Letters 110, 245001 (2013). [6] J. Breslau, et al., Physics of Plasmas 16, 092503 (2009). [7] S. Jardin, et al., Computational Science Discovery 5, 014002 (2012). [8] J. Luxon, Nuclear Fusion 42, 614633 (2002). [9] P. Parks and L. Baylor, Physical Review Letters 94, 125002 (2005). Acknowledgments This work was supported by U.S. DoE contracts DE-AC05-00OR22725, DE-AC02-09CH11466, and DE-FC02-04ER54698.
| Funders | Funder number |
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| U.S. DOE | DE-AC05-00OR22725, DE-AC02-09CH11466, DE-FC02-04ER54698 |
| United States Government |
