The Challenges of Modeling Astrophysical Reactive Flows

ORAL

Abstract

Energy production in stellar environments is dominated by thermonuclear energy release, which can take place in quiet convective flows or explosive environments. Multidimensional models of astrophysical reactive flows have many challenges: capturing the relevant length and timescales, and keeping the different physics inputs coupled together over the course of the simulation. We will show applications to X-ray bursts, thermonuclear supernovae, and massive star evolution and discuss how algorithmic improvements and harnessing the power of GPUs has allowed us to make significant progress on understanding these astrophysical events, using our open source AMReX-Astrophysics suite of simulation codes.

*The work at Stony Brook was supported by DOE/Office of Nuclear Physics grant DE-FG02-87ER40317. This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Advanced Scientific Computing Research and Office of Nuclear Physics, Scientific Discovery through Advanced Computing (SciDAC) program under Award Number DE-SC0017955. This research was supported by the Exascale Computing Project (17-SC-20-SC), a collaborative effort of the U.S. Department of Energy Office of Science and the National Nuclear Security Administration. This research used resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U. S. Department of Energy under Contract No. DE-AC02-05CH11231. This research used resources of the Oak Ridge Leadership Computing Facility at the Oak Ridge National Laboratory, which is supported by the Office of Science of the U.S. Department of Energ

–

Presenters

  • Michael Zingale

    • Stony Brook University (SUNY)

Authors

  • Michael Zingale

    • Stony Brook University (SUNY)