Skip to Main content Skip to Navigation
Theses

Modélisation avancée de la combustion turbulente diphasique en régime de forte dilution par les gaz brûlés

Abstract : As a contribution to the improvement of numerical simulations of industrial furnaces with flue gas recirculation and liquid fuel, two aspects of the non-premixed turbulent combustion modeling are addressed: the handling of two-phase problems and the treatment of complex mixing configuration, such as dilution and internal recirculation. An ethanol/oxygen spray flame is first solved in an LES, following an Euler-Lagrange formalism, with detailed chemistry and at a resolution reaching 250 µm. The spray injection conditions are determined from granulometry and Doppler-phase anemometry measurements. In a second part, a novel formalism to describe turbulent combustion is developed, based on the introduction of characteristic timescales of the mixing history. It is then validated on the reference case of a jet flame in a vitiated co-flow.
Complete list of metadata

Cited literature [163 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00735875
Contributor : Abes Star :  Contact
Submitted on : Thursday, September 27, 2012 - 10:07:19 AM
Last modification on : Wednesday, April 21, 2021 - 3:16:56 AM
Long-term archiving on: : Friday, December 28, 2012 - 3:50:10 AM

File

2011_these_Enjalbertbis.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-00735875, version 1

Citation

Nicolas Enjalbert. Modélisation avancée de la combustion turbulente diphasique en régime de forte dilution par les gaz brûlés. Autre [cond-mat.other]. INSA de Rouen, 2011. Français. ⟨NNT : 2011ISAM0023⟩. ⟨tel-00735875⟩

Share

Metrics

Record views

853

Files downloads

867