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A Two Dimensional Example Model
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8. Repeat these steps to create the clay soil; refer to the data provided in the "A Two Dimensional
Example Model" section at the beginning of this tutorial.
9. Press OK to close the Soils Manager dialog.
1.4.3
Adding Regions
This model will be divided into two regions, which are named SandySoil and ClayLayer. Each region will
have one of the soils just defined specified as its soil properties. To add the necessary regions follow these
steps:
1. Open the regions dialog by selecting Model > Geometry > Regions from the menu.
2. Change the first region name from R1 to SandySoil. To do this, highlight the name and type new
text.
3. Select the Sand from the Soil drop-down.
4. Press the New button to add a second region.
5. Change the name of the second region to ClayLayer.
6. Select the Clay soil for the ClayLayer region.
7. Check the Show checkboxes. This will display graphical representations for the boundary
conditions when they are defined later in this tutorial.
8. Click OK to close the dialog.
1.4.4
Defining Region Geometry Shapes
The shapes that define each soil region will now be created. Note that when drawing geometry shapes, the
region that is current in the region selector is the region the geometry will be added to. The Region Selector is
at the top of the workspace.
SandySoil
ClayLayer
· Define the SandySoil
1. Ensure the “SandySoil” region is current in the region selector drop-down.
2. Select Draw > Model Geometry > Region Polygon from the menu.
3. Move the cursor near (0,0) in the drawing space. You can view the coordinates of the current
position the mouse is at in the status bar just below the drawing space.
4. To select the point as part of the shape left click on the point.
5. Now move the cursor near (50,0). Left click on the point and a line is now drawn from (0,0) to
(50,0).
6. Move the cursor near the point (50,50). Left click on the point and a line is now drawn from (50,0)
to (50,50).
7. Move the cursor near the point (27.5,50) Left click on the point and a line is now drawn from
(50,50) to (27.5,50).
8. Repeat to draw the next 5 segments.
9. For the last point, move the cursor near the point (0,50) and double click on the point to finish the