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

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • National University of Defense Technology
  • Murdoch University
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Strömningsmekanik och akustik

Nyckelord

Originalspråkengelska
Sidor (från-till)1264-1275
Antal sidor12
TidskriftInternational Journal of Hydrogen Energy
Volym42
Utgivningsnummer2
Tidigt onlinedatum2016 jul 5
StatusPublished - 2017 jan 12
PublikationskategoriForskning
Peer review utfördJa