Journal articles
Numerical Monte Carlo analysis of the influence of pore-scale dispersion on macrodispersion in 2-D heterogeneous porous media
Abstract : We investigate the influences of pore‐scale dispersion and of larger‐scale permeability
heterogeneities on the macrodispersion without the molecular diffusion. Permeability follows
a lognormal exponentially correlated distribution characterized by its correlation length l
and its lognormal variance s
2
. Macrodispersion is evaluated numerically by using
parallel simulations on grids of characteristic size ranging from 200l to 1600l. We note
a
L
and a
T
the pore‐scale longitudinal and transversal dispersivities. For a
L
/l <10
−2
and
a
T
/l <10
−3
, the influence of pore‐scale dispersion on the macrodispersion is smaller than
5% of the macrodispersion due only to permeability heterogeneities
Cited literature [39 references]
https://hal-insu.archives-ouvertes.fr/insu-00610159
Contributor : Isabelle Dubigeon <>
Submitted on : Thursday, February 4, 2016 - 2:55:56 PM
Last modification on : Friday, January 15, 2021 - 3:33:11 AM
Long-term archiving on: : Saturday, November 12, 2016 - 9:13:04 AM
Contributor : Isabelle Dubigeon <>
Submitted on : Thursday, February 4, 2016 - 2:55:56 PM
Last modification on : Friday, January 15, 2021 - 3:33:11 AM
Long-term archiving on: : Saturday, November 12, 2016 - 9:13:04 AM
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Beaudoin-WRR-2010.pdf
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