ASTRA7: an evolution of the ASTRA transport code
Event details
| Date | 30.03.2015 |
| Hour | 10:30 |
| Speaker | Dr. Emiliano Fable, Max-Planck-Institut für Plasmaphysik, Garching, D |
| Location |
PPB 019
|
| Category | Conferences - Seminars |
The ASTRA transport code has been recently expanded in three key areas: the capability of performing free-boundary equilibrium calculations, the inclusion of a toroidal momentum transport equation based on first principles, and finally the coupling with first-principle-based turbulence code TGLF.
- The axisymmetric equilibrium code SPIDER has been chosen as the free-boundary Grad-Shafranov solver which allows ASTRA to evolve profiles inside a dynamical plasma shape, as well as allowing prediction of magnetic flux consumption.
- A toroidal momentum transport equation has been included, which is derived consistently with plasma quasi-neutrality and known physics of the Reynolds-stress. Neoclassical flows are also taken into account, that can contribute to the rotation dynamics.
- The quasi-linear trapped-gyro-Landau fluid code TGLF [G. M. Staebler, GA], has been coupled to ASTRA. It allows to compute energy and particle fluxes based on the combined linear fluid growth-rate calculations and fit of the saturation rule based on non-linear GYRO calculations.
Besides, ASTRA has been equipped with interfaces to several other codes as TORBEAM, STRAHL, and TORIC, to allow integrating impurity dynamics and self-consistent EC/IC heating profiles into the calculations.
Examples of the application of the new ASTRA7 version will be given.
- The axisymmetric equilibrium code SPIDER has been chosen as the free-boundary Grad-Shafranov solver which allows ASTRA to evolve profiles inside a dynamical plasma shape, as well as allowing prediction of magnetic flux consumption.
- A toroidal momentum transport equation has been included, which is derived consistently with plasma quasi-neutrality and known physics of the Reynolds-stress. Neoclassical flows are also taken into account, that can contribute to the rotation dynamics.
- The quasi-linear trapped-gyro-Landau fluid code TGLF [G. M. Staebler, GA], has been coupled to ASTRA. It allows to compute energy and particle fluxes based on the combined linear fluid growth-rate calculations and fit of the saturation rule based on non-linear GYRO calculations.
Besides, ASTRA has been equipped with interfaces to several other codes as TORBEAM, STRAHL, and TORIC, to allow integrating impurity dynamics and self-consistent EC/IC heating profiles into the calculations.
Examples of the application of the new ASTRA7 version will be given.
Practical information
- Informed public
- Free
Organizer
- Prof. P. Ricci
Contact
- Prof. P. Ricci