Download TUFLOW Manual - 2007

Tutorial models
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To avoid this, it is best to include sections across the channel (perpendicular to flow) at regular
spacing along the channel, and in particularly around the bends.
To do this use the create feature arc button ( ) to create the lines across the river. These do not need
to snap to existing vertices, new ones will be created if required. An example is shown below, once
the lines are drawn, 10 vertices should be distributed along each arc. Using the select tool, multiple
arcs can be selected holding down shift.
Once the additional arcs have been created, the polygons need to be rebuilt. To do this select Features
Objects >> Build Polygons from the menu. Once rebuilt, the individual polygons can be selected and
have different mesh types applied.
Select the southernmost polygon and select attributes (or double click on the polygon). Ensure the
Mesh Type is set to patch and then hit preview mesh.
TUFLOW FV USER MANUAL BUILD 2010-10-AA