【214】 Characterization of Jacobian Free Newton Krylov algorithm to solve the free boundary equilibrium problem

24 Aug 2017, 15:00
15m

Speaker

Mr Francesco Carpanese (SPC/ EPFL)

Description

The ITER actuator controllers will need numerical test and tuning with a “tokamak simulator” based on 1.5MHD equilibrium/transport model, ideally during pre-shot operation.
Coupling the equilibrium code LIUQE and transport code RAPTOR, the fastest available to our knowledge in their categories, would provide a fast and control oriented simulator for this purpose.
A stable, flexible and fast numerical method to solve for the non-linear coupling is sought. The Jacobian Free Newton Krylov method is investigated in terms of stability against initial conditions and minimum number of evaluations of the non-linear function required.

Authors

Mr Francesco Carpanese (SPC/ EPFL) Dr Artur Palha da Silva Clérigo (Tu/e)

Co-authors

Dr Olivier Sauter (SPC/ EPFL) Dr Federico Alberto Alfredo Felici (Tu/e) Dr Jean-Marc Moret (SPC/EPFL)

Presentation materials

There are no materials yet.