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Reference solutions for linear radiation transport: the Hohlraum and Lattice Benchmarks

  • Schotthoefer, Steffen | Oak Ridge National Laboratory
  • Hauck, Cory | Oak Ridge National Laboratory
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Overview

Description

Radiation transport describes the propagation of energetic particles through space as they interact with a surrounding material medium. In a kinetic description, radiation transport is modeled by a radiation transport equation (RTE) that prescribes the density of the radiation in position-momentum phase space. The purpose of this dataset is to provide highly resolved solutions to two benchmark problems. These two benchmarks do not possess exact solutions; moreover, the construction of a manufactured solution may require a non-physical source that is not desirable, especially if it spoils the physical nature of the solution. Thus the goal of this computational study is to provide a highly resolved reference solution for testing newer, more cost efficient methods that are currently being developed in the research community.

Funding resources

DOE contract number

DE-AC05-00OR22725

Originating research organization

Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring organization

Office of Science (SC)

Details

DOI

10.13139/OLCF/2540565

Release date

May 7, 2025

Dataset

Dataset type

ND Numeric Data

Software

KiT-RT solver: https://github.com/KiT-RT/kitrt_code ; CharmKiT python wrapper: https://github.com/ScSteffen/CharmKiT

Acknowledgements

Users should acknowledge the OLCF in all publications and presentations that speak to work performed on OLCF resources:

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.

Category

  • 97 MATHEMATICS AND COMPUTING

Keywords

  • Radiation Transport,
  • Hohlraum Test Case,
  • Lattice Test Case,
  • Linear Radiation Transport Equation,
  • Discrete Ordenates