In our previous article, we briefly introduced the evaluation indicators for mesh quality. For details, you can click the article below to read.
Introduction to ANSYS Mesh Quality Criteria
In this article, we will specifically explain how to check mesh quality in APDL and Workbench.
1、Steps to check mesh quality in APDL
In APDL, the SHPP command is mainly used to check mesh quality. However, the command has many subsequent parameters, and mesh quality check is only a pre-processing view, so you don’t need to master the usage of the SHPP command. Here, we recommend using the GUI method, which is simple and clear, and does not require checking the SHPP Help to determine the parameters. The corresponding steps are as follows:
Step 1: Turn on the mesh quality element assessment switch and determine whether to change the default assessment indicator warning and error values based on your needs. The operation path is: Preprocessor – Checking Ctrls – Shape Checking.
Step 2: Determine the type of mesh element quality assessment items based on your needs. The operation path is: Preprocessor – Checking Ctrls – Toggle Checks.
Step3: View the results of Mesh quality , Preprocessor – Checking Ctrls – Shape Checking–Summary
The middle position in the summary table lists the number of each type of element, and the bottom lists the total number of elements corresponding to each assessment indicator, the number of elements exceeding the warning value, the number of elements exceeding the error value, and the ratio of the warning number plus the error number to the total number in the last column. “Any” at the bottom represents all element types, and the ratio of total warnings plus errors.
Through the above operations, we can roughly understand the basic situation of mesh quality. The above method is the way to check mesh quality in APDL. However, compared with Workbench, it is not as convenient for visualization. Next, we will introduce how to check mesh quality in Workbench.
2. Methods to check mesh quality in Workbench
If you are using a mesh created in Workbench, you can click on “Mesh,” then click on “Quality-Mesh Metric” in the Mesh Properties dialog box. You can view the model checking results for each assessment indicator in the drop-down option box. At the same time, the maximum value, minimum value, average value, and standard deviation of each indicator will be provided. The distribution of mesh quality will be expressed briefly in the form of a chart at the bottom right, as shown below.
If you have created the mesh in APDL, you first need to import the APDL model into Workbench. For the specific import method, you can refer to the article below.
How to Import ANSYS APDL to Workbench
After importing the APDL model, you can check the mesh quality according to the method mentioned before.
As you can see, compared with APDL, Workbench provides a more vivid and intuitive view of mesh quality. You can choose the platform that suits your needs.