First, set the Porosity,
εp (a dimensionless number between 0 and 1), that uses by default the value
From material. For
User defined the default is 0.
Then, set the Permeability,
κ (SI unit: m
2), to specify the capacity of the porous material to transmit flow. For
User defined select
Isotropic to define a scalar value or
Diagonal,
Symmetric, or
Full to define a tensor value and enter another value or expression in the field or matrix.
When a Porous Material node is defined on the domains where the
Hygroscopic Porous Medium feature is active, the
Porosity and the
Permeability can be set in the
Homogenized Properties section of the
Porous Material node.
