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ASCR Discovery carries original articles about computational science from the research portfolio of the Office of Advanced Scientific Computing Research in the Department of Energy Office of Science, plus links to DOE science highlights and other computational science-related content. ASCR-supported research includes projects at DOE national laboratories, at many public and private universities and collaborations with other agencies and institutions.
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In this poloidal cross-section tokamak simulation, turbulence is generated in two places: at the edge and at the center. The center turbulence is confined as it rotates quickly, but the edge turbulence propagates inward, colliding with the center turbulence and filling the entire volume. Researchers believe this is a key factor in forming H mode.