|1. Read the file
in with gluing and trimming enabled. Select the two points shown and
to get an approximate body length. The message window reports almost
25.5 units long. Click
to get an approximate center.
|2. Leaving the point created selected, enter 255 (10x25.5) in
field. Leave the start and end angles at the default (0 and 90 respectively).
Select the curve and point shown and go to the
Application. Since the rotation is about the
x-axis, there is no need to select a vector. Make sure the VX in
is selected. Leave the
field at 0.0 but change the
to 90.0 and click
|3. Select the surface and point shown and go the
to 90.0. Change
to 3. Make sure the VX in vectors component field
is clicked to rotate about the x-axis. Click .
|4. Select the surfaces shown and the point shown. Change
the (VX,VY,VZ) fields in the Vector application
to (1,0,0). Click .
Select the surfaces of the sphere just created, enter "OuterBoundary"
in the name field of the group editor
area and . Check the topology and glue the edges of the newly created surfaces.
to glue the edges and then click to ensure that the model is topologically valid.
|5. Select the 6 outer boundary points. Go to the
enter a value of 30 for the spacing, ,
|6. In the application,
set the Absolute Initial Spacing to 2.5e-4. Click the
Prop, Body, LeftWing, RightWing, and Mouth groups. Select
Click the OuterBoundary group. Select
Generate the volume grid by clicking .
(This could take a while. If possible change the host
field to another machine). For illustration, set only normal
growth on groups Prop, Body, LeftWing, RightWing, and Mouth and generate
the volume grid again. (Change the case name in fileio so your previous
volume grid doesn't get written over.) This disables reconnection
on the surface grid. In this case, the volume grid won't generate.
(It makes it part of the way and dies). In some cases, the resulting
volume grid is better than with reconnection on.
|7. Read (sm -grid gridfilename) in the good grid
(the one generated with reconnection on). The group names are not
retained so find the group containing the outer boundary, ,
Make the S_grid Shaded. In the
application, turn the preview plane on. Change to the XZ plane,
change the Y value to 0, and .
Turn the preview plane off.
|8. Left click somewhere on the prop close to the cutting plane
and zoom. You can see the viscous packing close to the solid surface.
Set the CuttingPlane to Invisible in the global
graphics edit area. At the top of the panel, select
Volume Weather Map and click .
This gives a plot of the angles in the volume grid. Click .
This returns the max and min angles to the message window.