4 papers
A Propagator-based Multi-level Monte Carlo Method for Kinetic Neutral Species in Edge Plasmas
Gregory J. Parker, Maxim V. Umansky, Benjamin D. Dudson
We propose and investigate a new multi-level Monte Carlo scheme for numerical solutions of the kinetic Boltzmann equation for neutral species in edge plasmas. In particular, this m…
Machine Learning approach to modeling of neutral particles transport in plasma
M. V. Umansky, G. J. Parker, R. D. Smirnov
A propagator-based approach is investigated for Monte-Carlo (MC) modeling of neutral particles transport in fusion boundary plasmas. The propagator is essentially a Green function…
Modeling of convective cells, turbulence, and transport induced by a radio-frequency antenna in the tokamak boundary plasma
M. V. Umansky, B. D. Dudson, T. G. Jenkins +2
The edge turbulence model Hermes (Dudson et al., 2017 Plasma Phys. Control. Fusion 59 05401) is set up for plasma boundary simulations with an RF antenna, using parameters characte…
Simulations of the churning mode: toroidally symmetric plasma convection and turbulence around the X-points in a snowflake divertor
D Power, M V Umansky, V A Soukhanovskii
Using a reduced MHD model, extended to include field-aligned thermal conduction, we present numerical simulations of the churning mode (CM): a toroidally symmetric, non-linear plas…