It uses the same input options as the Fluid subfeature under the Porous Medium feature. There are further details about the settings.

The temperature model input is always available. By default, the Temperature model input is set to Common model input, and the temperature is controlled from Default Model Inputs under Global Definitions or by a locally defined Model Input. If a Heat Transfer interface is included in the component, it controls the temperature Common model input. Alternatively, the temperature field can be selected from another physics interface. All physics interfaces have their own tags (Name). For example, if a Heat Transfer in Fluids interface is included in the component, the Temperature (ht) option is available for T.

If transport by convection is active, the velocity field of the solvent needs to be specified. Select an option from the Velocity field list to specify the convective velocity along the fracture. For a consistent model, use a Fracture feature in a Darcy’s Law interface to compute the fluid flow velocity in the fracture.

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