Nondimensional Transport Study of JT-60U Plasmas

Research and development of fusion grid infrastructure based on atomic energy grid infrastructure (AEGIS)

“…Therefore, we have carried out R&D of backend API/CLI to establish the grid-enabled integrated analysis system. By applying developed AEGIS backend CLI to TOPICS [6]-MARG2D [7] coupling code, we have confirmed that the integrated analysis system has been easily extended to the system executable in heterogeneous computers (see Fig. 4(b)).…”

Kinetic simulations of turbulent fusion plasmas

“…Although recent experimental observations support the above assumptions on l c and τ c [110], the ion heat diffusivity observed in low confinement plasmas called as L-mode plasma showed much worse size scaling, χ B ∼ c s ρ i ∼ χ GB /ρ * , which is often called as Bohm like [110][111][112]. This indicated that the experiment cannot be fully described by a local turbulence picture, and that a global approach is essential to study the size scaling.…”

Burn control simulation experiments in JT-60U

“…In order to understand the large variation observed in the RS plasma in the previous section, we conducted numerical analysis with a 1.5-dimensional timedependent transport analysis code, TOPICS (TOkamak Prediction and Interpretation Code System) [9]. The burning plasma simulation scheme was incorporated into the code, where the injected NB power was determined based on the neutron yield rate and the stored energy calculated in the code for every 0.01 s. The NB power per unit was set at the absorbed power evaluated with Orbit Following Monte Carlo (OFMC) code.…”