Adsorption

Use this node to model adsorption of the fluid phase species onto the porous media surface. It is available as a subnode to the Porous Media Transport Properties and the Partially Saturated Porous Media nodes.


	This feature is only available in a limited set of add-on products. See http://www.comsol.com/products/specifications/ for more details on availability.

Matrix Properties

Use the list to define a material specifying the matrix properties on the current selection. By default the is used.

The density of the porous media is needed when modeling adsorption to the surface of the porous matrix. By default ρ is defined from the domain material.

Adsorption

Select a — (the default), , or to specify how to compute cP, the amount of species sorbed to the solid phase (moles per unit dry weight of the solid):

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For :

Enter a kL,c (SI unit: m3/mol) and an cp,max,c (SI unit: mol/kg):

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For :

Enter a kF,c (SI unit: mol/kg), a NF,c (dimensionless), and a cref,c (SI unit: mol/m3).

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For :

Enter an kP,c (SI unit: m3/kg).

For more information, see in the theory section.