BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:"FENICIA: A New 3D Code for a General Class of Plasma Models using
  a New Approach to Field-aligned Coordinate Systems"
DTSTART:20130515T103000
DTSTAMP:20260929T083201Z
UID:2932f9e1a0ce23c0855edad31b04846d41f5776043ade91350722460
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. F. Hariri\, IRFM/SCCP - CEA Cadarache\, France\nThis work 
 illustrates a new approach to field-aligned coordinates which is not based
  on flux variables. The method is implemented in a newly developed 3D code
  that called FENICIA that solves a broad class of plasma models ranging fr
 om the Hasegawa-Mima equation up to the kinetic equations. I first present
  the features of the new code I developed\, and show how the new method ha
 s a number of advantages over methods constructed starting from flux coord
 inates\, allowing for more flexible coding in a variety of situations incl
 uding X-point configurations. The accuracy of the approach is tested in pa
 rticular with respect to the question of spurious radial transport\, an ob
 vious concern when abandoning flux coordinates. In this regard\, I also sh
 ow that numerical radial diffusion can be easily kept under control with t
 he choice of suitable algorithms\, at a minimal computational cost. Then\,
  tests on a 3D model for Ion Temperature Gradient (ITG) driven turbulence 
 in cylindrical geometry demonstrate that the method is well suited to expl
 oit the flute property of small parallel gradients by minimizing the numbe
 r of degrees of freedom needed to treat a given problem in an accurate and
  efficient manner. Finally\, simulations in the nonlinear turbulent regime
  allow one to recover\, at reduced numerical cost\, the standard features 
 of slab ITG turbulence.
LOCATION:PPB 019
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR