CCSN Simulation with Spectral Two-Moment Neutrino Transport Using Flash-X
POSTER
Abstract
We are developing the toolkit for high-order neutrino-radiation hydrodynamics (thornado) to simulate neutrino transport and its coupling to matter in core-collapse supernova (CCSN) explosions.
thornado, which implements spectral two-moment neutrino transport with a high-order discontinuous Galerkin method and implicit-explicit time-stepping, and WeakLib\footnote{github.com/starkiller-astro/weaklib}, a microphysics library that provides tabulated microphysics, have been coupled with the simulation framework Flash-X.
With this enhanced Flash-X code, we will simulate CCSN explosions in multiple spatial dimensions.
Here we present our latest results: 1. A detailed comparison between spherically-symmetric simulations, beginning with a 9 Solar-mass progenitor, obtained using different two-moment closure methods with thornado transport with relativistic corrections. 2. Spherically-symmetric simulations of three low-mass, Solar-metallicity progenitors using the SFHo equation of state, electron-flavor ‘’Bruenn 85’’ neutrino opacities, Flash-X hydrodynamics, and thornado transport.
thornado, which implements spectral two-moment neutrino transport with a high-order discontinuous Galerkin method and implicit-explicit time-stepping, and WeakLib\footnote{github.com/starkiller-astro/weaklib}, a microphysics library that provides tabulated microphysics, have been coupled with the simulation framework Flash-X.
With this enhanced Flash-X code, we will simulate CCSN explosions in multiple spatial dimensions.
Here we present our latest results: 1. A detailed comparison between spherically-symmetric simulations, beginning with a 9 Solar-mass progenitor, obtained using different two-moment closure methods with thornado transport with relativistic corrections. 2. Spherically-symmetric simulations of three low-mass, Solar-metallicity progenitors using the SFHo equation of state, electron-flavor ‘’Bruenn 85’’ neutrino opacities, Flash-X hydrodynamics, and thornado transport.
*The authors acknowledge support from 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 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 Energy under Contract No. DE-AC05-00OR22725.
Presenters
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Ran Chu
- University of Tennessee