Modeling Fusion Plasma Stability Center for Extended Magnetohydrodynamic Modeling (CEMM) Assessing the mechanisms that lead to disruptive and other stability limits in present and next generation fusion devices Steve Jardin (project webpage) Princeton Plasma Physics Laboratory

Our Center aims to further develop the world’s most powerful simulation codes for studying the macroscopic dynamics of MHD-like phenomena in fusion plasmas, and to use them on the most advanced computers to address critical issues facing burning plasma experiments such as ITER. Our multi-institution Center has existed since June 2001. It has already pioneered simulations that have shed new insight in many different application areas and has demonstrated that the algorithms in its major codes can scale to 1000s of processors. We have developed excellent working relationships with the SciDAC applied math and computer science centers TOPS, ITAPS, and APDEC; these collaborations have substantially improved the algorithms and efficiency of our leading tokamak global codes, NIMROD and M3D, and have facilitated the development of a new code, AMRMHD, utilizing block structured adaptive mesh refinement. The physical problems we are now focusing on are: sawteeth, sawteeth in the presence of energetic particles, excitation and control of neoclassical tearing modes, resistive wall modes, disruptions, edge localized modes, error field studies, and pellet fueling.

Science Application: Fusion Science

Project Title: Center for Extended Magnetohydrodynamic Modeling (CEMM)

Principal Investigator: Steve Jardin
Affiliation: Princeton Plasma Physics Laboratory

Project Webpage: http://w3.pppl.gov/cemm/

Participating Institutions and Co-Investigators:
Princeton Plasma Physics Laboratory - Steve Jardin (PI), Josh Breslau, Jin Chen, Morrell Chance, Guo-Yong Fu, Stuart Hudson, Wonchull Park, Ravi Samtaney
Massachusetts Institute of Technology - Jesus Ramos, Linda Sugiyama
New York University - Hank Strauss
University of Colorado - Scott Parker
University of Wisconsin - Carl Sovinec, Dalton Schnack
Utah State University - Eric Held
General Atomics - Valerie Izzo
Tech-X Corporation - Scott Kruger, Serguei Ovtchinnikov
Los Alamos National Laboratory - Alan Glasser

Funding Partners: Office of Science — Office of Advanced Scientific Computing Research and Office of Fusion Energy Sciences

Budget and Duration: Approximately $1.0 million per year for three years (Science Application Partnership is three years) ¹

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