Fracture

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.

Use this node to model mass transport along thin fractures in porous media. The node assumes that the transport in the tangential direction along the fracture is dominant, as a result of lower flow resistance.

Fracture Properties

Specify a value for the dfr.

Porous Material

Select an option from the list. The default is .

By default the εp (dimensionless) is taken . Select to enter a different value or expression.

Convection

Select an option from the list to specify the convective velocity along the fracture. For a consistent model, use a Fracture Flow feature in a Darcy’s Law interface to compute the fluid flow velocity in the fracture.

For , enter values or expressions for the velocity components in the table shown.


	The settings for the Diffusion, and Dispersion sections are the same as for Porous Media Transport Properties.