Detailed numerical analysis of heat fluxes in the extinction of lean flames through narrow channels (Contributo in atti di convegno)

Type

• Prodotto della ricerca (Classe)
• Contributo in atti di convegno (Classe)

Label

• Detailed numerical analysis of heat fluxes in the extinction of lean flames through narrow channels (Contributo in atti di convegno) (literal)

Anno

• 2003-01-01T00:00:00+01:00 (literal)

Alternative label

• Tecce L.; Continillo G.; Marra F. S. (2003)
  Detailed numerical analysis of heat fluxes in the extinction of lean flames through narrow channels
  in 6th International Conference on Engines for Automobile, Capri, September 14 - 19
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Tecce L.; Continillo G.; Marra F. S. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume

• Proceedings - ICE 2003, 6th International Conference on Engines for Automobile (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Dipartimento di Ingegneria, Università degli studi del Sannio, Benevento, ITALY; Istituto di Ricerche sulla Combustione CNR, Naples, ITALY (literal)

Titolo

• Detailed numerical analysis of heat fluxes in the extinction of lean flames through narrow channels (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn

• 8890039914 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autoriVolume

• Society of Automotive Engineers / Naples Section (literal)

Abstract

• Aim of this work is to analyse the detailed numerical results of the two-dimensional, full Navier-Stokes simulation of flame propagation at near-extinction conditions. Simulations are conducted as the flame approaches the opening of a narrow, cold tube. Quantitative evaluation of heat fluxes and strain rate for the cases considered (\"real\", adiabatic and free-slip at the wall of the tube) permits to elucidate the mechanism of flame extinction up to an unprecedented degree of detail. It appears that heat conduction to the cold wall be the dominant mechanisms leading to flame extinction. Convective and interdiffusive contributions from/to the flame region are computed as being much smaller for the present configuration. Finally, the Karlowitz number remains relatively small in all cases considered, thus indicating that flame stretch is not important. (literal)

Prodotto di

• Institute for research on combustion (IRC) (Istituto)

Autore CNR

• FRANCESCO SAVERIO MARRA (Persona)

Incoming links:

Prodotto

• Institute for research on combustion (IRC) (Istituto)

Autore CNR di

• FRANCESCO SAVERIO MARRA (Persona)