Multilayer Well Workflow

Multilayer wells can be assigned manually via the Multilayer Well Editor or they can be imported from maps using FEFLOW's Parameter Association dialog.

Manual Assignment

To assign a Multilayer well manually, the following steps are required:

In the Data panel, activate Boundary Conditions (BC) > Fluid flow > Multilayer Well with a double click.
Use the tools provided in the Selection toolbar to create a Edge selection at the Multilayer well location.

Please note that after clicking on Select Edges, you will have the opportunity to choose vertical or horizontal edges

Double-click into the input box of the Editor toolbar that is now in Multilayer-Well assignment mode to open the Multilayer Well Editor dialog.

Well capacity, well radius, head constraints, vertical extent and the material properties of the Multilayer well are entered here.
The Multilayer well assignment is executed with a click on Assign and the dialog is closed with a click on Close.

Assignment via Maps

Maps that are to be used for Multilayer well import need to contain attributes for the capacity and for the screen top and bottom. Optionally, minimum and maximum head constraints, well radius, well name and further material properties can be defined in import maps.

For the assignment via maps, the following steps are required:

Load the map that contains the attribute data for the Multilayer well assignment via the Maps panel.
Select Link to Parameter from the context menu of the map in the Maps panel to open the Parameter Association dialog.
Select the attribute column containing the well capacity in the left-hand box and select the field Rate in the Multilayer Well section on the right-hand side. To create the link, click on Add link or double-click on Rate. If required change the Source data unit.
In the same way, link the attribute fields for screen top and bottom to the FEFLOW fields Top elevation and Bottom elevation. If required the Source data unit can be changed.
With these three links being defined, Multilayer wells can be assigned. Optionally, additional attribute fields can be linked to further Multilayer well properties.

Adjust the Snap Distance in one of the links and leave the dialog with OK. The link definition will be shown in the Linked attributes section in the tree view of the Maps panel.
To activate the map and the boundary condition for assignment, double click on the link.
Create a join-edge (or edge) selection using the tools provided in the Selection toolbar.
Click on the green checkmark in the Editor toolbar to apply the regionalization and to assign the Multilayer wells.