Comparing TCV experimental VDE responses with DINA code simulations

Simulations of ITER Disruption and VDE scenarios with TSC and comparison with DINA results

Vertical Displacement Events (VDEs) and plasma current disruptions can seriously degrade the lifetime of in-vessel components in ITER, as large electromagnetic and thermal loads can be induced at such events. Hence, accurate modelling of such events is crucial for estimating disruption induced forces. In the past, ITER disruption modelling has been carried out using the DINA code. However, sinc...

Optimization of experimental snowflake configurations on TCV

The design of a snowflake (SF) equilibrium requires a strong effort on the poloidal field (PF) currents in terms of MAturns and mechanical loads. This has limited the maximum plasma current in SF configurations on Tokamak à Configuration Variable (TCV) to values well below the intrinsic MHD limits. In this paper the definition of optimized snowflake (SF) configurations in TCV and their experime...

Non-linear simulations of the TCV Scrape-Off Layer

To investigate the mechanisms leading to the heat deposition onto the first wall in the Scrape-Off Layer (SOL), we perform dedicated numerical non-linear simulations of the SOL plasma dynamics of a TCV discharge using the GBS code. The simulated parallel heat flux profiles on the limiter agree qualitatively with the experimental ones obtained by means of infrared thermography, showing a double ...

Study of early phase of current ramp-up in ITER with DINA code

poloidal field (PF) system complicate design of scenario of PF system operation during tokamak plasma initiation and complicate simulation of the plasma initiation. Due to low toroidal resistance of ITER vacuum vessel (VV), about 2 MA of eddy currents are induced in VV at breakdown which results in transient magnetic field in the plasma initiation region of about 30mT. At the same time the plas...

Time-dependent Simulations of Neoclassical Tearing Mode Stabilization in TCV