Transport and losses of energetic particles in tokamaks in the presence of Alfvén activity using the new full orbit TAPaS code coupled to FAR3d
Résumé
Recent developments and tools integrated into the TAPaS code
are presented, enabling realistic scenario simulations of particle dynamics within
experimental tokamak magnetic equilibria. In particular, the enhanced capabilities
of TAPaS enable seamless coupling with external simulations, provided the metric
and equilibrium magnetic field of the external code are known. Coupling TAPaS
with the gyro-fluid code FAR3d, the transport and losses of energetic particles (EPs)
in the presence Alfvén eigenmodes (AEs) in DIII-D plasma discharge #159243 were
investigated using simple initialization of energetic particles in phase space. Detailed
analyses of prompt losses in the presence of collisions (and without it) were performed.
Then, further analysis that involves including the total electromagnetic perturbations
resulting from AEs activities was performed. The results indicate that, for the energies
and the initial conditions considered here, the presence of AEs enhances the particle
losses at the end of the different simulations conducted in this study.
Domaines
Physique [physics]
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