A new rake is added to the list. The newly added rake is automatically
labeled, and is added to the bottom of the list.
Tip: You can rename
the rake using the right-click context menu.
From the Rake type drop-down menu, select Line.
A Line rake is defined by two end points.
Define the end points of the rake.
Pick two directly from the model in the modeling window.
Click the node/vector input collector N1,
N2 and select By ID to
select your desired nodes.
HyperView will automatically provide the X, Y, Z
positions (coordinates) of the nodes at the time of definition.
Click the
expansion button
to open the Reference point dialog in order to review or change these
coordinates.Figure 1.
Tip: Alternatively, if you know the specific coordinates of the end
points defining the rake, you can simply enter them in the
X, Y,
Z coordinate text boxes.
Important: It is important to make sure at least a portion of the
rake (at least one of the rake headers) is in the fluid field. Therefore it
is highly recommended that once the nodes have been selected, that you then
modify the point coordinates by giving them a small offset to make sure the
rake is in the "main stream", instead of the boundary layer. This will
ensure that full streamlines are created.
You can also use the graphical
manipulator to modify the rake location to ensure it is in the “main
stream”, and that all requested streamlines are generated.
Select the integration mode for the rake from the Integration
mode drop-down menu.
Option
Description
Downstream
Integration is done following the velocity field direction.
Upstream
Integration is done upstream, or opposite, to the velocity field
direction.
Both
Integration is done both downstream and upstream.
Enter the number of desired seeds in the Number of seeds
text box.
From the Streamlines tab, select the vector field to be used for streamline
creation (typically the velocity field) from the Source
drop-down menu.
Note: You can also click Advanced to open the dialog
which allows you to change a number of parameters that control how the
streamlines are generated.
In addition, the Tracers tab can also be used to create and animate
streamlines with particles traveling along the streamlines:
Click on the Tracers tab
Enter your desired options for tracer designs, coloring options, and
injection modes.
Click on the Create button to start the
animation.
Enter/select your desired Display options.
Option
Description
Auto-generate
Activate the check box to automatically generate streamlines upon
release of the mouse button, if the rake remains at least partly in the
fluid domain and the stream lines existed prior to changing the rake.
If the streamline is contoured prior to changing the rake, the
contour will be automatically regenerated also.
Draw as tube
Active this option to draw the streamlines as tubes instead of
lines.
The streamlines will appear to have a larger diameter (for
the same streamline size) when this option is
activated.
Streamline size
OR
Seed marker size
Enter the relative scale for the streamline thickness. The value
must be a positive whole number.
OR
Enter the size of the seed
nodes which are being used as the starting point for the streamline
generation.
Color by
Select Seed from the drop-down menu to use
the number specified in the Number of colors text box to distinguish
streamlines.
Note: This option is disabled if a contour is applied to
the model. HyperView supports streamline
contouring for nodal results only (elemental results are not
supported).
Tip: To remove the contour, and
enable the Color by option, go to the Contour panel and click
Clear Contour.
Number of colors
Enter the number of distinct colors (1-14) to use when the Color by
drop-down menu is set to Seed.
Click the Create Streamlines button to create and view
the streamlines.
Use the Graphical Manipulator to rotate, translate, or modify the scale of the
rake.
to open the Reference point dialog in order to review or change these
coordinates.