Kozeny-Carman Permeability Model¶
Overview¶
In the Kozeny-Carman model (see ref), the permeability of a porous medium is governed by several key parameters, including porosity, grain size, and grain shape:
where is the sphericity of the particles, is the particle diameter, is the porosity of the porous medium.
Parameters¶
The Kozeny-Carman Permeability Model can be called in the
<Constitutive>
block of the input XML file.
This permeability model must be assigned a unique name via the
name
attribute.
This name is used to assign the model to regions of the physical
domain via a materialList
attribute in the <ElementRegions>
block.
The following attributes are supported:
Name | Type | Default | Description |
---|---|---|---|
name | string | required | A name is required for any non-unique nodes |
particleDiameter | real64 | required | Diameter of the spherical particles. |
sphericity | real64 | required | Sphericity of the particles. |
Example¶
<Constitutive>
...
<CarmanKozenyPermeability name="matrixPerm"
particleDiameter="0.0002"
sphericity="1.0"/>
...
</Constitutive>