Dumux::DiffusivityMillingtonQuirk< Scalar > Class Template Reference

Relation for the saturation-dependent effective diffusion coefficient. More...

#include <dumux/material/fluidmatrixinteractions/diffusivitymillingtonquirk.hh>

Description

template<class Scalar>
class Dumux::DiffusivityMillingtonQuirk< Scalar >

Relation for the saturation-dependent effective diffusion coefficient.

The material law is:

\[ D_\text{eff,pm} = \phi * S_w * \tau * D \]

with

\[ \tau = \frac{1}{\phi^2} * \left(\phi S_w\right)^{7/3} \]

after Millington and Quirk 1961: Permeability of porous solids [45] and Helmig 1997: Multiphase Flow and Transport Processes in the Subsurface: A Contribution to the Modeling of Hydrosystems, page 129 [30]

Static Public Member Functions
static Scalar	effectiveDiffusivity (const Scalar porosity, const Scalar saturation, const Scalar diffCoeff)
	Returns the effective diffusion coefficient \(\mathrm{[m^2/s]}\) after Millington Quirk. More...

Member Function Documentation

effectiveDiffusivity()

template<class Scalar >

static Scalar Dumux::DiffusivityMillingtonQuirk< Scalar >::effectiveDiffusivity ( const Scalar  porosity, const Scalar  saturation, const Scalar  diffCoeff  )

inlinestatic

Returns the effective diffusion coefficient \(\mathrm{[m^2/s]}\) after Millington Quirk.

Parameters

porosity	The porosity
saturation	The saturation of the phase
diffCoeff	The diffusion coefficient of the phase \(\mathrm{[m^2/s]}\)

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The documentation for this class was generated from the following file:

• diffusivitymillingtonquirk.hh