Abstract
Ideal peeling-ballooning modes are important for magnetic nuclear fusion
devices, but most of the theoretical and computational work that has
been performed over the years to gain insight into their inner workings
and consequences has been limited to axisymmetric (so-called 2D) cases
which limits the range of applicability of the results. For example, the
proposed use of perturbation coils in tokamaks to destabilize ELMS
before they have a chance to grow dangerous has an inherently
non-axisymmetric (3D) nature. Furthermore, many devices, such as
stellarators, are intrinsically not axisymmetric. In this contribution
we present a new code, PB3D (Peeling-Ballooning in 3D), that implements
the equations of a previously developed theory that overcomes these
stringent limitations by making no use of an axisymmetric approximation.
The first benchmarking results of PB3D, dealing with the investigation
of the stability properties of magnetic equilibria with nested flux
surfaces obtained numerically from multiple equilibrium codes, such as
HELENA and VMEC, are presented here. The results will be compared with
those of various axisymmetric stability codes.
| Original language | English |
|---|---|
| Publication status | Published - 1 Nov 2015 |
| Event | 57th Annual Meeting of the APS Division of Plasma Physics - Savannah, United States Duration: 16 Nov 2015 → 20 Nov 2015 Conference number: 57 |
Conference
| Conference | 57th Annual Meeting of the APS Division of Plasma Physics |
|---|---|
| Country/Territory | United States |
| City | Savannah |
| Period | 16/11/15 → 20/11/15 |