Members and Research Interests
The LHCD simulation using GTC code needs to evaluate ion as 'true' particle and without Gyroaverage. So the original GTC code need to be modified. The original GTC code use gyrocenter to describe ion and treat electron as fluid (with higher order correction), which is not sufficent to emulate the propogation of Lower Hybrid wave in plasma. So in our new version, the ion are describe as 'true' particle — without Gyroavaraging, and electron as gyrocenter. Thus the new code can match the space and time scale the LHCD simulation needed. In theoretical aspect, we follow Prof. Lin Yu's work for GeFi code, rewrite the fomulation in magnetic coordinates. The code will be modifed base on that. The modification is still under going and will be soon completed, the future effert will mainly paied on testing new code and use this to inspect exciting phenomena inside tokamak.
My research is on the simulation of energetic particle transport excited by ion temperature gradient (ITG) microturbulence. I use the Gyrokinetic Toroidal Code (GTC) to do the above work. It has been shown that energetic particles can reduce particle transport, which is a good sign in Magnetic Confinement Fusion (MCF). The simulation is associated with DIII-D Tokamak experiment which give us the basic reference, also reflecting our simulation's practical guide to the future bigger Tokamak, such as ITER.
Global gyrokinetic particle simulation of benchmark on the toroidal Alfven eigenmodes (TAE) case