Large eddy simulation of hydrogen combustion in supersonic flows using an Eulerian stochastic fields method

Cheng Gong*, Mehdi Jangi, Xue Song Bai, Jian Han Liang, Ming Bo Sun

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

An Eulerian Monte-Carlo approach, the so-called Eulerian stochastic fields (ESF) method is implemented and evaluated for simulation of non-premixed hydrogen/air combustion in supersonic flows. The ESF method is integrated into a compressible flow large eddy simulation (LES) solver, and validated on a supersonic combustor with a strut as flame-holder. Comparison with experimental data and with results from a well-stirred reactor (WSR) model demonstrates the advantage of the LES-ESF method for simulation of local-extinction and re-ignition phenomena. The hydrogen/air flame structure and the stabilization of the combustion process in the supersonic combustor are analysed based on the present LES-ESF method. Oscillation of the recirculation zones is found to be the dominant mechanism for the local-extinction/re-ignition and the flame stabilization under the present condition.

Original languageEnglish
Pages (from-to)1264-1275
Number of pages12
JournalInternational Journal of Hydrogen Energy
Volume42
Issue number2
Early online date2 Oct 2016
DOIs
Publication statusPublished - 12 Jan 2017

Keywords

  • Eulerian stochastic fields
  • Large eddy simulation
  • Local-extinction
  • Re-ignition
  • Supersonic
  • Transported probability density function

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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