You can create inflation mesh structures in ANSNS Meshing with different options. All of these inflation meshing options in ANSYS® Meshing are explained in Mechanicalland. One of these inflation options is the First Aspect Ratio option. In this article we will explain;
- What is the First Aspect Ratio in inflation meshing?
- How to adjust the inflation option in ANSYS® Meshing as First Aspect Ratio?
First Aspect Ratio Inflation Option In ANSYS® Meshing

To adjust the Inflation Option as First Aspect Ratio, click on the Mesh tab as shown by the red arrow above, then click on Inflation Option in Inflation section as shown by the green arrow. Select the First Layer Ratio option for Inflation Option as shown by the green box in ANSYS® Meshing.
The first Aspect Ratio options use three values are entered by users; First Aspect Ratio, Maximum Layers, and Growth Rate. With these values, the inflation mesh structure will be obtained.

First Aspect Ratio: Heights of the inflation layers are defined by the extruded inflation layer’s aspect ratio that is entered.
Maximum Layers: Number of layers that you want to create in the inflation mesh structure.
Growth Rate: This is the rate of increment in each successive layer in the inflation mesh structure.
The inflation mesh structure will be defined according to these values that are entered by you in the First Aspect Ratio option in ANSYS® Meshing.
Conclusion
This is the general information about the First Aspect Ratio in ANSYS® Meshing.
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NOTE: All the screenshots and images are used in education and informative purposes. Images used courtesy of ANSYS, Inc.
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