A new predictive computer simulation tool targeting the development of the H-mode pedestal at the plasma edge in tokamaks and the triggering and dynamics of edge localized modes (ELMs) is presented in this report. This tool brings together, in a coordinated and effective manner, several first-principles physics simulation codes, stability analysis packages,… (More)
Edge pedestal height and the accompanying ELM crash are critical elements of ITER physics yet to be understood and predicted through high performance computing. An entirely self-consistent first principles simulation is being pursued as a long term research goal, and the plan is planned for completion in time for ITER operation. However, a… (More)
An experimental study of adaptive application sensitive partitioning strategies for SAMR applications.
(such as the point on the surface where the centre of a vortex touches down) and saddles 23,27 (which have two streamlines entering and two leaving the critical point from opposite directions). Saddle points are thought to be characteristic of separated flows 21–24. The distribution of critical points, and of the streamlines joining them, defines the… (More)
The design and efficient operation of a distributed information system to support scientific modeling is subject to a variety of balancing concerns, such as conlputa-tion, data, and communication) load and constraints on the use of restricted-license third-party software conlpo-Ilents, special purpose 1/0 devices, and large data resources. The Regional… (More)