Skip to Main content Skip to Navigation
Reports

Aligned interpolation and application to drift kinetic semi-Lagrangian simulations with oblique magnetic field in cylindrical geometry

Abstract : We introduce field aligned interpolation for Semi-Lagrangian schemes, adapting a method developed by Hariri-Ottaviani [7] to the semi-Lagrangian context. This approach is vali-dated on the constant oblique advection equation and on a 4D drift kinetic model with oblique magnetic field in cylindrical geometry. The strength of this method is that one can reduce the number of points in the longitudinal direction. More precisely, we observe that we gain a factor |n| |n+mι| (where ι is the inverse safety factor), with respect to the classical approach, for the typical function sin(mθ + nϕ).
Complete list of metadatas

Cited literature [9 references]  Display  Hide  Download

https://hal.inria.fr/hal-01098373
Contributor : Michel Mehrenberger <>
Submitted on : Monday, January 5, 2015 - 4:31:48 PM
Last modification on : Friday, June 19, 2020 - 9:22:05 AM
Document(s) archivé(s) le : Wednesday, June 3, 2015 - 12:15:54 PM

File

sample.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-01098373, version 1

Collections

Citation

Guillaume Latu, Michel Mehrenberger, M Ottaviani, Eric Sonnendrücker. Aligned interpolation and application to drift kinetic semi-Lagrangian simulations with oblique magnetic field in cylindrical geometry. [Research Report] IRMA. 2014. ⟨hal-01098373⟩

Share

Metrics

Record views

866

Files downloads

183