Porous Matrix (Porous Medium)
This subnode defines the properties of a porous medium filled with two phases in equilibrium: liquid water and moist air.
Porous Matrix Properties
The Porosity, εp (dimensionless), by default uses values From material. For User defined the default is 0.8.
Set the Permeability, κ (SI unit: m2), to specify the capacity of the porous material to transmit flow. The default uses values From material. For User defined select Isotropic, Diagonal, or Symmetric to enter values or expressions in the edit fields.
When a Porous Material node is defined on the domains where the Porous Medium feature is active, the Porosity and the Permeability can be set in the Homogenized Properties section of the Porous Material node.
When setting temperature or pressure-dependent properties, the corresponding model inputs can be specified in the Porous Medium parent node.
The capillary transport and storage properties of the porous material can be specified in the Porous Medium parent node.
The properties for liquid transport are specified in the Liquid Water (Porous Medium) subnode.
The moist air properties are specified in the Moist Air (Porous Medium) subnode.
Location in User Interface
Context Menus
Moisture Transport in Solids > Porous Medium > Porous Matrix