Synergie entre turbulence et écoulements en configuration divertor - introduction d'éléments de la physique de la turbulence dans les codes de transport (thèse 2016 - 2019)
Activités
turbulences dans les plasmas de tokamak
modélisation et simulation
écoulements en configuration divertor
Publications scientifiques au M2P2
2018
Philippe Ghendrih, Y. Asahi, E. Caschera, Guilhem Dif-Pradalier, P. Peter Donnel, et al.. Generation and dynamics of SOL corrugated profiles. Journal of Physics: Conference Series, 2018, 1125, pp.012011. ⟨10.1088/1742-6596/1125/1/012011⟩. ⟨hal-02196677⟩ Plus de détails...
The staircase transport regime reported in kinetic simulations of plasma turbulent transport in magnetic confinement is recovered with a simple 2D fluid model allowing for reduced damping of the zonal flows. Some of the complex dynamics of the kinetic zonation regime are recovered but the pattern of the corrugation appears to be sinusoidal with a characteristic scale comparable to that of turbulence modes with largest spectral energy, in contrast to regimes observed in global and flux-driven kinetic simulations. Enhanced zonal flows govern both an overall reduction of the SOL width and a gradual steepening of the gradients with distance to the separatrix.
Philippe Ghendrih, Y. Asahi, E. Caschera, Guilhem Dif-Pradalier, P. Peter Donnel, et al.. Generation and dynamics of SOL corrugated profiles. Journal of Physics: Conference Series, 2018, 1125, pp.012011. ⟨10.1088/1742-6596/1125/1/012011⟩. ⟨hal-02196677⟩
