Benchmark numerical simulations of rarefied non-reacting gas flows using an open-source DSMC code

Rodrigo C. Palharini*, Craig White, Thomas J. Scanlon, Richard E. Brown, Matthew K. Borg, Jason M. Reese

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Validation and verification represent an important element in the development of a computational code. The aim is establish both confidence in the algorithm and its suitability for the intended purpose. In this paper, a direct simulation Monte Carlo solver, called dsmcFoam, is carefully investigated for its ability to solve low and high speed non-reacting gas flows in simple and complex geometries. The test cases are: flow over sharp and truncated flat plates, the Mars Pathfinder probe, a micro-channel with heated internal steps, and a simple micro-channel. For all the cases investigated, dsmcFoam demonstrates very good agreement with experimental and numerical data available in the literature.

Original languageEnglish
Pages (from-to)140-157
Number of pages18
JournalComputers and Fluids
Volume120
DOIs
Publication statusPublished - 5 Oct 2015

Keywords

  • DSMC
  • Benchmark
  • Open-source
  • Rarefied gas dynamics
  • Aerodynamics
  • Low/high speed flows
  • MONTE-CARLO METHOD
  • 70-DEGREE BLUNTED CONE
  • HYPERSONIC CONDITIONS
  • HEAT-TRANSFER
  • PARTICLE SIMULATIONS
  • LEADING-EDGE
  • FLAT-PLATE
  • VALIDATION
  • MODEL
  • EQUATIONS

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