PeleMP: The Multiphysics Solver for the Combustion Pele Adaptive Mesh Refinement Code Suite: Paper No. FE-23-1347

Landon Owen, Wenjun Ge, Martin Rieth, Marco Orient, Lucas Esclapez, Bruno Soriano, Michael Mueller, Marcus Day, Ramanan Sankaran, Jacqueline Chen

Research output: Contribution to journalArticlepeer-review

Abstract

Combustion encompasses multiscale, multiphase reacting flow physics spanning a wide range of scales from the molecular scales, where chemical reactions occur, to the device scales, where the turbulent flow is affected by the geometry of the combustor. This scale disparity and the limited measurement capabilities from experiments make modeling combustion a significant challenge. Recent advancements in high-performance computing (HPC), particularly with the Department of Energy's Exascale Computing Project (ECP), have enabled high-fidelity simulations of practical applications to be performed. The major physics submodels, including chemical reactions, turbulence, sprays, soot, and thermal radiation, exhibit distinctive computational characteristics that need to be examined separately to ensure efficient utilization of computational resources. This paper presents the multiphysics solver for the Pele code suite, called PeleMP, which consists of models for spray, soot, and thermal radiation. The mathematical and algorithmic aspects of the model implementations are described in detail as well as the verification process. The computational performance of these models is benchmarked on multiple supercomputers, including Frontier, an exascale machine. Results are presented from production simulations of a turbulent sooting ethylene flame and a bluff-body swirl stabilized spray flame with sustainable aviation fuels to demonstrate the capability of the Pele codes for modeling practical combustion problems with multiphysics. This work is an important step toward the exascale computing era for high-fidelity combustion simulations providing physical insights and data for predictive modeling of real-world devices.
Original languageAmerican English
Number of pages18
JournalJournal of Fluids Engineering, Transactions of the ASME
Volume146
Issue number4
DOIs
StatePublished - 2024

NREL Publication Number

  • NREL/JA-2C00-88846

Keywords

  • adaptive mesh refinement
  • combustion
  • high performance computing
  • multi physics
  • multiphase
  • soot
  • thermal radiation

Fingerprint

Dive into the research topics of 'PeleMP: The Multiphysics Solver for the Combustion Pele Adaptive Mesh Refinement Code Suite: Paper No. FE-23-1347'. Together they form a unique fingerprint.

Cite this