Transient dynamics of soot in ethylene-air nonpremixed counterflow flames

Chun Sang Yoo, Hong G. Im

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The dynamics of soot formation in ethylene-air nonpremixed counterflow flames is studies using direct numerical simulation (DNS), using a semi-empirical soot model and the discrete ordinate method (DOM) as a radiation solver. Transient characteristics of soot behavior in the presence of radiation are studies by a model problem of flame interaction with counterrotating vortices as well as with turbulence inflow at various intensities. The interaction between soot and vortex/turbulence reveals that the soot volume fraction depends on the combined effects of the local conditions of flow, temperature and fuel concentration, while the soot number density depends predominantly on the temperature. The local characteristics of soot in laminar and turbulent flames are compared and the results are discussed.

Original languageEnglish (US)
Title of host publicationChemical and Physical Processes of Combustion - 2005 Technical Meeting of the Eastern States Section of the Combustion Institute
PublisherCombustion Institute
Pages121-124
Number of pages4
ISBN (Electronic)9781604235067
StatePublished - 2005
Externally publishedYes
Event2005 Technical Meeting of the Eastern States Section of the Combustion Institute: Chemical and Physical Processes of Combustion - Orlando, United States
Duration: Nov 13 2005Nov 15 2005

Other

Other2005 Technical Meeting of the Eastern States Section of the Combustion Institute: Chemical and Physical Processes of Combustion
CountryUnited States
CityOrlando
Period11/13/0511/15/05

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry
  • Mechanical Engineering

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