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Operation Toolpad > Geometry Command Button > Group Command Button > Create Group

Select Edges and enter farfield for Label, which is the name of the group. Select the edges AB, BC, CD and DE.

Note that GAMBIT adds the edge to the list as it is selected in the GUI.

Click Apply.

In the transcript window, you will see the message "Created group: farfield".

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Operation Toolpad > Zones Command Button > Specify Boundary Types

Under Entity, select Groups.

Click on the wedge surface. Next to Name:, enter wedge. Leave the Type as WALL.

Click Apply.

In the Transcript Window, you will see a message saying "Created Boundary entity: wedge".

Similarly, create boundary entities corresponding to farfield and symmetry groups. Set Type the to Pressure Farfield and symmetry in each case.

Save Your Work

Main Menu > File > Save

Export Mesh

Main Menu > File > Export > Mesh...

Save the file as wedge.msh.

Make sure that the Export 2d Mesh option is selected.

Check to make sure that the file is created.

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