Last Updated：2022/12/24
The hydraulic radius is found from the definition Rₕ = ([volume of (interstitial) pore space filled with fluid]/[surface area of (interstitial) pore apace in contact with fluid]) = (porosity (ε₀)/specific surface area (Sᵥ)), where both ε₀ and Sᵥ are practical and experimentally measurable characteristics of porous materials.
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The
hydraulic
radius
is
found
from
the
definition
Rₕ
=
([volume
of
(interstitial)
pore
space
filled
with
fluid]/[surface
area
of
(interstitial)
pore
apace
in
contact
with
fluid])
=
(porosity
(ε₀)/specific
surface
area
(Sᵥ)),
where
both
ε₀
and
Sᵥ
are
practical
and
experimentally
measurable
characteristics
of
porous
materials.
