BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:MIRIAM KREHER (MIT) DTSTART:20210205T170000Z DTEND:20210205T180000Z DTSTAMP:20260423T005823Z UID:CRIBB/4 DESCRIPTION:Title: Co mputational Analysis of Nuclear Reactor Transients\nby MIRIAM KREHER ( MIT) as part of Computational Research in Boston and Beyond Seminar (CRIBB )\n\n\nAbstract\nZOOM MEETING info:\n\n https:// mit.zoom.us/j/96155042770\n\n Meeting ID: 9 61 5504 2770\n\n\nSince nuclear experiments are costly and require extensi ve safety precautions\, the nuclear industry relies heavily on modeling an d simulation of nuclear systems. The state-of-the-art simulation tool for steady-state neutron transport is Monte Carlo\, a probabilistic approach to solving for the distribution of neutrons. \n\nAlthough it is the most a ccurate tool available\, it is very computationally expensive. Monte Carlo is even more burdensome when coupled to other physics which allows us to properly capture feedback effects from density and temperature changes. No netheless\, it is imperative to do such coupling because nuclear reactor d esigns rely on these intrinsic feedback mechanisms to ensure passive safet y. In addition to coupling Monte Carlo with other physics codes\, there is an additional hurdle to overcome for time-dependent simulations. These a re a few of the reasons why nuclear reactor simulations are a target of Ex ascale computing initiatives. \n\nThis talk will cover a number of couplin g schemes that create feasible runtimes for coupled time-dependent Monte C arlo simulations. In particular\, we will give consideration to high-orde r/low-order schemes where Monte Carlo and diffusion solvers are paired to deliver accurate results in efficient time. \n\n\nABOUT THE SPEAKER: Miri am Kreher is a PhD candidate in the Computational Reactor Physics Group in the MIT Nuclear Science and Engineering Department. She is also a fellow of the DOE Computational Science Graduate Fellowship program. Kreher rece ived a BS in Engineering Science from the University of Pittsburgh in 2016 . Kreher is a contributor of OpenMC and currently serves on the Board of D irectors of the American Nuclear Society.\n LOCATION:https://researchseminars.org/talk/CRIBB/4/ END:VEVENT END:VCALENDAR