In CFD modeling, input parts can have topology issues, like free surfaces and self-intersections, and part assembly
issues, such as parts with very close proximity and intersecting parts. Manually connecting these parts can be time
consuming and require expertise in certain tools. The Wrap tool can generate a watertight manifold model from dirty input with considerably less manual work.
Use the Edit: Smooth tool
to optimize the quality of selected elements.
The Edit tools work for tessellated
geometry. If the input is b-spline geometry, first convert to discrete geometry
using the Convert tool.
A node of a shell element is free, and therefore can be moved, if none of the
following statements are true:
It is used by an element that was not selected.
It is selected as an anchor node.
It is attached to an edge, vertex, or meshing fixed point of a surface.
It is used by a 1D element (whether or not that element is selected).
It is not attached to a surface, but is on a feature line of the mesh of the
selected plate or shell elements.
From the Geometry ribbon, click the Edit > Smooth tool.
Elements are colored according to how
well they adhere to the pre-set quality requirements defined in the criteria
file.
Optional: On the guide bar, click to to define the options used to
edit elements.
Select an element issue type from the guide bar.
Quality
Checks for quality as defined in quality criteria.
Intersections
Checks for intersecting elements.
Face angles
Checks for folded or sharp angle elements.
Select the element(s) to smooth.
Optional: Select anchor nodes in the following ways:
Hold Ctrl while left-clicking.
Activate the Anchors selector on the guide bar then make your selection.
In the microdialog, select a smoothing method then
click Smooth.
Auto
Calculates the lengths of all of the elements’ edges to finds the
extreme values. If the ratio of smallest to largest is below a
certain threshold, than the Fix Shape method will be used. If the
ratio of smallest to largest is above a certain threshold, than the
Fix Size method will be used.
Fix Size
Moderates variations in element edge size through the mesh using a
modified Laplacian over-relaxation that correctly handles a mixture
of quad and tria elements.
Fix Shape
Moderates variations in element aspect ratio through the mesh using
a modified isoparametric-centroidal over-relaxation that correctly
handles a mixtures of quad and tria elements.
Q.I. Warm, Q.I. Good, Q.I. Ideal
Sets the quality of the optimization target to the corresponding
value on the quality index.
Edit: Smooth Tool
An overview of the Edit: Smooth
tool.
Use the Edit: Smooth tool to optimize the quality of selected elements.
Access
Go to Geometry > Edit > Smooth.
Option
Allow to move fixed and shared nodes
Allow moving fixed and shared nodes for element operations.
Intersections >
Set intersection tolerance to find out penetration level of two
intersecting elements.
Face angles <
Set dihedral angle to find out sharp angle elements.