Large Eddy Simulation of transient premixed flame-vortex interactions in gas explosions (Articolo in rivista)

Type
Label
  • Large Eddy Simulation of transient premixed flame-vortex interactions in gas explosions (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.ces.2011.11.034 (literal)
Alternative label
  • Di Sarli V.; Di Benedetto A.; Russo G. (2012)
    Large Eddy Simulation of transient premixed flame-vortex interactions in gas explosions
    in Chemical engineering science
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Di Sarli V.; Di Benedetto A.; Russo G. (literal)
Pagina inizio
  • 539 (literal)
Pagina fine
  • 551 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.scopus.com/inward/record.url?eid=2-s2.0-84856570586&partnerID=q2rCbXpz (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 71 (literal)
Rivista
Note
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto di Ricerche sulla Combustione - Consiglio Nazionale delle Ricerche (IRC-CNR), Via Diocleziano 328, 80124, Napoli, Italy; Dipartimento di Ingegneria Chimica, Università degli Studi Federico II, Piazzale Tecchio 80, 80125, Napoli, Italy (literal)
Titolo
  • Large Eddy Simulation of transient premixed flame-vortex interactions in gas explosions (literal)
Abstract
  • In this work, a Large Eddy Simulation (LES) model was used to simulate the transient premixed flame-vortex interaction, which is the key phenomenon determining dynamics and consequences of gas explosions. In particular, the effect of the grid resolution on the impact of the combustion sub-model was investigated. To this end, LES computations were run, with and without the combustion sub-model, on three non-uniform unstructured grids with cell characteristic length varying in the ranges 2-3. mm, 1-2. mm and 0.5-1. mm. Numerical predictions were compared with literature experimental data. It has been found that the amount of detail explicitly resolved on the finer grid (having a resolution of the same order of magnitude as the laminar flame thickness) is such that, even without the combustion sub-model, the LES results obtained with this grid correctly match the experimental data in both quantitative (flame speed and flow velocity) and qualitative (shape and structure of the flame front) terms. © 2011 Elsevier Ltd. (literal)
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