Abstract Details
Abstracts
Author: James L Juno
Requested Type: Poster
Submitted: 2025-03-14 13:46:07
Co-authors: A. Hakim, J. TenBarge
Contact Info:
Princeton Plasma Physics Laboratory
100 Stellarator Rd
Princeton, NJ 08540
United States
Abstract Text:
To facilitate new kinetic models of magnetized plasmas, I will discuss a recent innovation which separates the parallel and perpendicular dynamics starting from the kinetic equation while staying agnostic to the inclusion of effects important to consider in diverse environments, such as strong flows in certain fusion reactors or complex boundary conditions and geometry in lab plasma modeling. The key component of the derivation lies in a spectral expansion of only the perpendicular degrees of freedom, analogous to spectral methods which have grown in popularity in recent years for gyrokinetics, while retaining the complete dynamics parallel to the magnetic field. We thus leverage our intuition that a magnetized plasma’s motion is different parallel and perpendicular to the magnetic field, while allowing for the treatment of complex phase space dynamics parallel to the magnetic field. This "parallel-kinetic-perpendicular-moment," or PKPM, approach also naturally couples to Maxwell’s equations, allowing for everything from simplified RF coupling to the straightforward inclusion of all aspects of an experiment, from vacuum regions to external coils. Some preliminary results of extending this model to field-line following coordinates for easier modeling of fusion plasmas will be shown.
Characterization: 4.0
Comments: