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 Citations (Scopus)

Abstract

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
Volume48
Issue number3
DOIs
StatePublished - Sep 1 2005

Fingerprint

finite volume method
Finite volume method
Finite Volume Method
Droplet
Combustion
formulations
Thermal diffusion
Formulation
Drag coefficient
Forced convection
Heptane
Numerical models
Evaporation
fuel combustion
Thermal Diffusion
Forced Convection
flame temperature
Drag Coefficient
drag coefficients
forced convection

ASJC Scopus subject areas

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

Cite this

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