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Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 67, 2015 - Issue 3
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Original Articles

Numerical Investigation on Mass Dispersion in Turbulent Flows through Porous Media with High Porosity

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Pages 293-312 | Received 30 Sep 2013, Accepted 18 Apr 2014, Published online: 23 Oct 2014
 

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.

Notes

Color versions of one or more of the figures in the article can be found online at www.tandfonline.com/unht.

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