Description
T3ST is a numerical framework for simulating charged-particle dynamics in tokamak plasmas, incorporating realistic magnetic equilibria, Coulomb collisions, and synthetic turbulence in the passive-particle limit. Turbulent fields are constructed as statistical ensembles with prescribed Eulerian properties, allowing for rapid estimates of transport levels based on reduced turbulence information.
In this work, we address two closely related objectives. First, we present the first quantitative validation of T3ST through systematic comparisons with gyrokinetic simulations. Second, we examine the extent to which the Eulerian statistical assumptions underlying the synthetic turbulence model are consistent with realistic turbulence data, and we analyze how these assumptions influence the resulting Lagrangian transport properties.