THE NUMERICAL TOKAMAK PROJECT - SIMULATION OF TURBULENT TRANSPORT

Three-dimensional fluid and kinetic models are being used to simulate the turbulent confinement of energy and plasma in the core of tokamaks . These simulations represent a qualitative improvement in the realism with which they model large tokamak experiments, because they use rea listic plasma parameters and incorporate important geometrical effects . The combination of algorithm improvements and the application of hig h-performance computing methodology including the use of massively par allel computers has enabled dramatic improvements in simulation capabi lity. A consortium of research groups from universities and national l aboratories are collaborating in this effort which is entitled the Num erical Tokamak Project and is supported in part by the High Performanc e Computing and Communications Initiative.