Numerical Investigation on Mass Dispersion in Turbulent Flows through Porous Media with High Porosity
Release Time:2019-03-09 Hits:
Indexed by: Journal Article
Date of Publication: 2015-02-01
Journal: NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
Included Journals: EI、SCIE
Volume: 67
Issue: 3
Page Number: 293-312
ISSN: 1040-7782
Abstract: With porous combustor as engineering background, the mass dispersion process of methane and air in highly porous media is studied numerically based on a simplified model for the periodical structure of the porous media. The computational results obtained from the microscopic flow field within a unit cell, i.e., a representative elementary volume, into which a low Reynolds number turbulent model is incorporated, are employed to compute the longitudinal and transverse dispersion coefficients through a volume average approach. The results are compared with experimental data and empirical formulas available in the literature, and a reasonable agreement is achieved.
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