2023 PPPL Workshop on Theory and Simulation of Disruptions
Richard J. Hawryluk Conference Room (B318)
Princeton Plasma Physics Laboratory, Princeton University
July 19-21, 2023
Invited talks: 40 minutes (30 minutes talk, 10 minutes Q&A)
Contributed talks: 25 minutes (18 minutes talk, 7 minutes Q&A)
July 19
8:00-8:50 Registration
8:50-9:00 Welcome and Logistics: Amitava Bhattacharjee
Session I: Experiments
Chair: Nicholas Eidietis (GA)
09:00-09:40 Andrey Lvovskiy (GA): Density and temperature profiles after low-Z and high-Z shattered pellet injections on DIII-D
09:40-10:20 Nina Schwarz (IPP-Garching): The mechanism of vertical force reduction in mitigated disruptions
10:20-10:40 Coffee
10:40-11:05 Cedric Reux (CEA/JET): Characterization and limits of benign termination of runaway electron beams using low-Z massive material injections
11:05-11:45 Umar Sheikh (EPFL): Benign termination of runaway electron beams on JET, ASDEX Upgrade and TCV
11:45-12:15 Discussion on Session I
12:15-01:30 Lunch
Session II: Overviews of facilities and modeling capabilities
Chair: Amitava Bhattacharjee (PPPL/Princeton)
01:30-02:10 Michael Lehnen (ITER): Progress on the physics basis of the ITER DMS
02:10-02:50 Ryan Sweeney (CFS):Overview of SPARC disruptions
02:50-03:30 F. Javier Artola (ITER): Modelling of the Thermal Quench during Vertical Displacement Events in AUG, JET and ITER
03:30-03:50 Coffee
03:50-04:30 Valerie Izzo (Fiat Lux): Modeling of runaway electron deconfinement by a passive coil during a DIII-D current quench
04:30-04:55 Andreas Kleiner (PPPL): Extended-MHD simulations of disruption mitigation in SPARC using massive gas injection
04:55-05:20 Xianzhu Tang (LANL): ITER VDE modeling for disruption mitigation design
05:20-05:50 Discussion on Session II
06:00 Bus leaves for hotel
07:00-09:00 Group Dinner
July 20
Session III: Runaway electrons: theory and simulation
Chair: Carl Sovinec (UW-Madison)
08:30-09:10 Tünde Fülöp (Chalmers): Runaway electron dynamics in ITER disruptions mitigated by shattered pellet injection
09:10-09:35 Matthew Beidler (ORNL): KORC modeling of runaway electron beam impact on DIII-D DiMES
09:35-10:00 Alexandre Sainterme (UW-Madison): Linear stability of a fluid runaway electron beam
10:00-10:20 Coffee
10:20-11:00 Chang Liu (PPPL): Simulation of compressional Alfven eigenmodes in tokamak disruptions and impact on runaway electron transport
11:00-11:25 Gergely Papp (IPP-Garching):Impact of fusion-born alpha particles on runaway electron dynamics in ITER disruptions
11:25-11:50 Allen Boozer (Columbia): The asymmetry between magnetic surface breakup and reformation
11:50-12:20 Discussion on Session III
12:20-01:30 Lunch
01:30-03:30 Poster Viewing and Coffee
Session IV: Machine learning and forecasting
Chair: Nate Ferraro (PPPL)
03:30-04:10 Cristina Rea (MIT): A review of machine learning applications to disruptions
04:10-04:35 Diego del-Castillio-Negrete (ORNL): A machine learning normalizing flow surrogate model for runaway electron kinetic simulation
04:35-05:00 Steven Sabbagh (Columbia): First real-time application of disruption event characterization and forecasting and associated research
05:00-05:25 William Boyes (Columbia): MHD stability and scenario development of negative triangularity plasmas in DIII-D
05:25-05:50 Discussion on Session IV
06:00 Bus leaves for hotel
July 21
Session V: Wall currents, tearing modes, and mitigation
Chair: Carlos Paz-Soldan (Columbia)
08:30-09:10 Chris Hansen (Columbia): Design of passive and structural conductors for tokamaks using thin-wall eddy current modeling
09:10-09:35 Hank Strauss (HRS Fusion): Resistive wall tearing mode disruptions
09:35-10:00 Brett Chapman (UW-Madison): Non-disruptive tokamak operation far beyond traditional safety factor and density limits
10:00-10:20 Coffee
10:20-10:45 Veronika Zamkovska (Columbia): Cross-device DECAF investigation of abnormal evolution of plasma vertical position and current indicating disruptions and internal reconnection events
10:45-11:10 Paul Heinrich (IPP-Garching): Radiation analysis of the shattered pellet injection experiments performed at ASDEX Upgrade
11:10-11:35 Roman Samulyak (Stony Brook University): Simulation study of the influence of grad-B drift on pellet ablation dynamics
11:35-12:05 Discussion on Session V
12:05-12:15 Adjournment