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DTSTART;TZID=Europe/Stockholm:20240605T090000
DTEND;TZID=Europe/Stockholm:20240605T110000
UID:submissions.pasc-conference.org_PASC24_sess119@linklings.com
SUMMARY:MS5G - High Performance Computing for Magnetic Fusion Applications
  - Part III
DESCRIPTION:Minisymposium\n\nThis series of three minisymposia will be ded
 icated to addressing frontier challenges in magnetic fusion research. (1) 
 Machine Learning and Quantum Computing: the four speakers will cover vario
 us aspects of machine learning, from real-time control of tokamaks to turb
 ulence simulations to HPC issues. One talk will be devoted to the topic of
  quantum computing and examine opportunities for application in the field 
 of fusion plasma physics. (2) New developments for Edge and Scrape-Off Lay
 er (SOL) simulations: this is recognized as a frontier domain, involving s
 ignificant challenges at various levels. Three talks will be devoted to pr
 ogress made on three different kinetic codes, while a generalization of gy
 rokinetic models to magnetized sheath conditions will be presented in a fo
 urth talk. (3) Beyond gyrokinetic models: standard gyrokinetic theories ha
 ve their limitations which prevent them to be applied as is to various sit
 uations, in particular in presence of steep gradients as found in the oute
 r plasma region. Advanced kinetic simulations beyond the standard gyrokine
 tic approach used in magnetic fusion will be presented. The relation betwe
 en (fully-)kinetic, gyrokinetic, drift-kinetic and the MHD limit of these 
 will be discussed. In all three sessions, the latest HPC applications in t
 he field will be emphasized.\n\nFully Kinetic Simulations of Ion-Temperatu
 re-Gradient Driven Modes Using the Semi-Lagrangian Code ssV\n\nThe ion-tem
 perature-gradient driven instability (ITG) is a prominent challenge in con
 temporary magnetic fusion experiments. Turbulence driven by ITGs and other
  instabilities is most commonly simulated using gyrokinetic codes, which e
 xploit the strong magnetization of such plasmas, but likely face li...\n\n
 \nDaniel Told (Max Planck Institute for Plasma Physics)\n-----------------
 ----\nDevelopment of a Spectral Hybrid Kinetic-MHD Code Using the Van Kamp
 en Approach\n\nMagnetohydrodynamics (MHD) is widely used to study the stab
 ility of a given magnetic configuration with respect to potentially proble
 matic machine-scale instabilities. The basic mechanism of these macroscopi
 c modes are well described by this theory. Kinetic effects, through wave-p
 article interaction...\n\n\nFabien Jeanquartier (EPFL); Jonathan Graves (E
 PFL, University of York); and Stephan Brunner (EPFL)\n--------------------
 -\nDevelopment of a Performance Portable Geometric PIC Code\n\nThe fully k
 inetic Vlasov-Maxwell coupled to an appropriate collision operator contain
 s all the physics for describing the evolution of a magnetic fusion plasma
  in a Tokamak or a Stellarator. However, the Vlasov equation is posed in a
  6D phase space, so that it requires huge computational resources a...\n\n
 \nEric Sonnendrücker (Max Planck Institute for Plasma Physics, Technical U
 niversity of Munich)\n---------------------\nMHD Limit of Kinetic, Drift-K
 inetic and Gyro-Kinetic Models\n\nStandard derivations of Gyrokinetic theo
 ry are not formally compatible with global MHD theory, even in the collisi
 onal and small-Larmor radius limit. On the other hand, simpler kinetic the
 ories, like drift-kinetics, can be straightforwardly shown to be consisten
 t with MHD in appropriate limits. By l...\n\n\nBen McMillan (University of
  Warwick)\n\nDomain: Physics, Computational Methods and Applied Mathematic
 s\n\nSession Chairs: Stephan Brunner (EPFL); Eric Sonnendrücker (Max Planc
 k Institute for Plasma Physics, Technical University of Munich); and Laure
 nt Villard (EPFL)
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