Sphere Of Influence Element Sizing In ANSYS®(Illustrated Expression)

You can define your element size of the mesh structure that is inside the defined sphere. This can be very useful in certain situations in ANSYS® Meshing. If you want to obtain a certain size of mesh elements in a certain portion of your geometry in ANSYS®, you can do this kind of thing with the ‘Sphere Of Influence’ option of the Sizing tool of ANSYS® Meshing. You can find information about how to define mesh size with the sphere of influence in ANSYS® Meshing below with a very basic example.

How To Use Sphere Of Influence Meshing In ANSYS®?

Click on ‘Sizing’ tool in ANSYS® Meshing.

To use Sphere of Influence mesh sizing, right-click on the ‘Mesh’ tab then hover your mouse on ‘Insert’ as shown by the red arrow above, and click on ‘Sizing’ as in the red box above.

Select the geometry that you want to use the ‘Sphere of Influence’ method.

You need to select the geometry that you want to use ‘Sphere of Influence’ on it as shown by the red arrow, then click ‘Apply’ on the geometry tab as shown by the blue arrow above in ANSYS® Meshing.

Select the ‘Sphere of Influence’ as shown by the red arrow.
Define the required parameters for ‘Sphere of Influence’ in ANSYS®.

To define the center of the sphere, you need to select a coordinate system as shown by the red arrow above. You can create coordinate systems where do you want to place your sphere. After that, you need to define the radius of the sphere and mesh element size inside this sphere as in the red box. The preview of the sphere of influence is shown by the program as shown by the green arrow above.

Click on ‘Update’.

To create the mesh structure, right-click on the ‘Mesh’ tab then click on ‘Update’ as in the red arrow above.

Mesh structure that is created with ‘Sphere of Influence’ method.

You can see the influence of the sphere as shown by the red arrow that there is a transition between normal areas and sphere influenced mesh in ANSYS®.


Do not forget to leave your comments and questions about the ‘Sphere of Influence’ method in ANSYS® Meshing below!

NOTE: All the screenshots and images are used in education and informative purposes. Images used courtesy of ANSYS, Inc.


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