Adaptive Mesh Refinement Simulations for Turbulent Reacting Flow

Research output: NRELPresentation


With the increased availability of exascale computing hardware, detailed simulations of realistic devices can be performed at practically relevant time and length scales. Insights into the multiscale driving mechanisms in compressible reacting flow systems with complex geometry, such as combustors, can be used for design optimization and technology improvements. However, to effectively perform these simulations, advanced numerical algorithms must be used to maintain solution accuracy without incurring undue computational costs. PeleC, part of the Pele suite of codes, leverages block-structured adaptive mesh refinement (AMR) through the AMReX library to capture fine-scale flow features in compressible reacting flows. In this talk, we discuss recent improvements to the numerical algorithms, particularly in regard to describing flows at complex boundary structures, and PeleC's performance on exascale computing hardware. We will demonstrate that PeleC is well-suited for modern, extreme-scale, heterogenous compute platforms.
Original languageAmerican English
Number of pages16
StatePublished - 2023

Publication series

NamePresented at the SIAM Conference on Computational Science and Engineering (CSE23), 26 February - 3 March 2023, Amsterdam, Netherlands

NREL Publication Number

  • NREL/PR-2C00-85474


  • combustion
  • exascale
  • geometry
  • optimization
  • Pele


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