A numerical study of microgravity spherical diffusion flame structure with various radiation approximations

S. Tang, M. Chernovsky, H. G. Im, A. Atreya

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


In this study, a one-dimensional spherical diffusion flame model was constructed and validated with experimental results. The experiments were carried out in the NASA-Glenn 2.2-second drop tower in which both diffusion flame radius and temperature field were measured as a function of time. The simulation model is capable of both steady and transient calculations in which different approximations for radiation modelling are evaluated. Test simulation results showed that the statistical narrow-band (SNB) combined with discrete ordinates method (DOM) reproduced the experimental results most accurately. It was found that a steady state spherical diffusion flame is not established within the time duration under study. The results provide detailed information about the interaction between gas radiation and flame extinction under microgravity conditions.

Original languageEnglish (US)
Title of host publication5th US Combustion Meeting 2007
PublisherCombustion Institute
Number of pages10
ISBN (Electronic)9781604238112
StatePublished - 2007
Externally publishedYes
Event5th US Combustion Meeting 2007 - San Diego, United States
Duration: Mar 25 2007Mar 28 2007

Publication series

Name5th US Combustion Meeting 2007


Other5th US Combustion Meeting 2007
Country/TerritoryUnited States
CitySan Diego

ASJC Scopus subject areas

  • General Chemical Engineering
  • Physical and Theoretical Chemistry
  • Mechanical Engineering


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