Bulletin of the American Physical Society
60th Annual Meeting of the APS Division of Plasma Physics
Volume 63, Number 11
Monday–Friday, November 5–9, 2018; Portland, Oregon
Session TP11: Poster Session VII: Basic Plasma Physics: Pure Electron Plasma, Strongly Coupled Plasmas, Self-Organization, Elementary Processes, Dusty Plasmas, Sheaths, Shocks, and Sources; Mini-conference on Nonlinear Waves and Processes in Space Plasmas - Posters; MHD and Stability, Transients (2), Runaway Electrons; NSTX-U; Spherical Tokamaks; Analytical and Computational Techniques; Diagnostics (9:30am-12:30pm)
Thursday, November 8, 2018
OCC
Room: Exhibit Hall A1&A
Abstract ID: BAPS.2018.DPP.TP11.76
Abstract: TP11.00076 : Study of full impurity Shattered Pellet Injection by non-linear 3D JOREK simulation in JET plasma
Presenter:
Di Hu
(ITER Organization)
Authors:
Di Hu
(ITER Organization)
Daniele Bonfiglio
(Consorzio RFX)
Eric Nardon
(CEA)
Guido T. A. Huijsmans
(CEA)
Michael Lehnen
(ITER Organization)
Daan van Vugt
(Eindhoven University of Technology)
Comparing with the deuterium SPI case, the n=0 current profile contraction is found to play a more important role due to the more efficient cooling, while the destabilizing helical effect still persists. Strong and broad-spectrum MHD perturbations emerge as the cooling front approaches the q=2 surface, resulting in widespread field line stochasticity, and the consequential n=0 current profile relaxation.
Strong toroidal asymmetry of the radiation profile is identified, as well as a poloidal asymmetry which changes over time as pellet fragments travel through flux surfaces. It is found that impurity radiation is able to deplete more than 80% of the pre-injection thermal energy even for the smallest JET SPI caliber quantity.
Furthermore, the impact of injection parameters is demonstrated and the effect of SPI for different target q profiles and temperature profiles will also be discussed in order to provide insight for the development of the future ITER disruption mitigation system.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DPP.TP11.76
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700