A new multicomponent diffusion formulation for the finite-volume method: Application to convective droplet combustion

Daniel N. Pope, George Gogos

Research output: Contribution to journalArticle

22 Scopus citations


A new multicomponent formulation, appropriate for use with the finite-volume method, has been developed to describe mass diffusion velocities accurately. The new formulation is applied in a quasi-steady numerical model for n-heptane fuel droplet combustion in a forced-convection environment. Results obtained using the complete formulation are compared to the results obtained under various assumptions. Using a single binary diffusion coefficient produces results for extinction velocity, maximum temperature, flame dimensions, evaporation constant, and drag coefficient that are significantly different from the results obtained using the complete formulation. Neglecting thermal diffusion (Soret effect) causes only minor changes (less than 2%).

Original languageEnglish (US)
Pages (from-to)213-233
Number of pages21
JournalNumerical Heat Transfer, Part B: Fundamentals
Issue number3
Publication statusPublished - Sep 1 2005


ASJC Scopus subject areas

  • Numerical Analysis
  • Modeling and Simulation
  • Condensed Matter Physics
  • Mechanics of Materials
  • Computer Science Applications

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