Abstract
A numerical framework around the ELITE stability code is presented for the calculation of 3D MHD stability of tokamak plasmas, based on the variational formulation of the energy principle. It is observed that the ballooning mode is in general destabilized by the application of external MP fields in accordance with local ballooning analysis. The non-axisymmetric equilibrium leads to coupling of toroidal and poloidal modes such that retaining the individual poloidal harmonics of the toroidal basis functions becomes important. Finally, strong coupling is observed with increasing external field and additional toroidal harmonics will lead to more accurate results.
| Original language | English |
|---|---|
| State | Published - 2019 |
| Externally published | Yes |
| Event | 46th European Physical Society Conference on Plasma Physics, EPS 2019 - Milan, Italy Duration: Jul 8 2019 → Jul 12 2019 |
Conference
| Conference | 46th European Physical Society Conference on Plasma Physics, EPS 2019 |
|---|---|
| Country/Territory | Italy |
| City | Milan |
| Period | 07/8/19 → 07/12/19 |
Funding
This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training program 2014-2018 and 2019-2020 under grant agreement No 633053 and from the RCUK Energy Program [grant number EP/P012450/1]. To obtain further information on the data and models underlying this paper please contact [email protected]. The views and opinions expressed herein do not necessarily reflect those of the European Commission. In addition, this work is supported by the Fusion CDT program through EPSRC [grant number EP/L01663X/1].
| Funders | Funder number |
|---|---|
| Euratom research and training program 2014-2018 | 633053 |
| Engineering and Physical Sciences Research Council | EP/L01663X/1 |
| Research Councils UK | EP/P012450/1 |
