ansys 12 mesh quality
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ANSYS 12.1 Tutorial - Evaluate Mesh Quality
ANSYS 12.1 Tutorial and demo: Checking the mesh and element quality. ANSYS Workbench V12.1presents a new function which allows the users to view mesh metric information and thereby evaluate the mesh
quality. The article shows how to do it.
Demo video
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Step-by-step instructions
In previous versions, if the user wants to evaluate the mesh quality, he/she has to utilize FE Modeler or other
advanced meshing tools such as ICEM. ANSYS Workbench V12.1, as well as V12.0, presents newfunctionality which allows the users to view mesh metric information directly and thereby evaluate the mesh
quality. Below are detailed descriptions on how to do it.
After generating a mesh, we can access information of mesh metrics under Details of “Mesh”:
Figure 1. To view Mesh Metrics of whole model
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There are seven mesh metrics available: Element Quality, Aspect Ratio, Jacobian Ratio, Warping Factor, Parallel
Deviation, Maximum Corner Angle and Skewness. The default is “None” to turn off mesh metric viewing.
What we check here is mesh metric of whole model. If we choose a single part under Geometry, we can checkmesh metric just for this part. However, there is a limitation: The information presented here is grey-marked. That
means we cannot change to other mesh metrics than that defined under Mesh.
Figure 2. To view mesh metric for a single part
After selecting the mesh metric of interest from the drop-down menu, a bar graph is displayed under the graphicwindow for the selected mesh metric:
Figure 3. Bar graph for Element Quality
In the bar graph, all existed element types in the model are represented. The x-axis is the value of the selectedmesh metric and the y-axis is the number of elements within a particular quality factor range (the default), or the
percentage of the total volume represented by the elements within a particular quality factor range. We cancontrol settings of the bar graph by clicking on “Controls” on the top left corner:
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Figure 4. The bar graph controls
If we click on a bar, elements within the value of the selected bar are displayed in the graphic window. The rest
will be represented by transparent geometry. We can hold on the CTRL key to select multiple bars and allelements corresponding to the selected bars will be displayed:
Figure 5. Elements corresponding to selected bars
Some extra words: it is possible to show worst element for a selected mesh metric in ANSYS Workbench
V12.0 but not in V12.1.
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Figure 6. Show worst elements.
Figure 7. The worst elements are marked by red lines.
Do you want to learn more?
EDR provides a training course that covers basic Workbench operations, as well as other interesting topics.
Or contact our ANSYS Support to ask for hints!
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