Meshing > 3D tetrahedral meshing
Controlling the size of interior elements in a 3D tetrahedral mesh
Use the Internal Mesh Gradation slider in the 3D Tetrahedral Mesh dialog box to control how the software increases the element size in the interior of the volume.
Use the Internal Mesh Gradation slider to define the value that the software uses as a multiplier for increasing the length of one internal element edge to the next internal edge. For example, to maintain a constant gradation through the volume, you can specify a value of 1. This option replaces the Element Growth Rate Through Volume slider that was available in previous releases.
Use the Target Internal Edge Length Limit option to specify a desired limit for the length of element edges in the interior of the volume. If you specify a value that is larger than the overall Element Size, then this option sets the maximum size of elements inside the volume.If you specify a value that is smaller than the overall Element Size, then this option sets the minimum size of elements inside the volume.
| Constant internal mesh gradation | Internal Mesh Gradation value of 2Target Internal Edge Length Limit value of 100 mm |
Where do I find it?
| Application | Pre/Post |
|---|---|
| Prerequisite | A FEM file as the work part and displayed part |
| Command Finder | 3D Tetrahedral Mesh |
| Location in dialog box | Mesh Settings group |
How do I
Create a 3D tetrahedral mesh
Learn more
3D tetrahedral meshing
Understanding the tetrahedral meshing process
Understanding 3D tetrahedral mesh quality evaluation
Midnode placement for parabolic elements
Creating at least two elements through the thickness of tetrahedral meshes
Understanding the Auto Fix Failed Elements process
Quick links
Command reference
Pre/Post video examples
Bulk Entry Descriptions
Simcenter 3D tutorials
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Controlling the size of interior elements in a 3D tetrahedral mesh, Simcenter 3D 2021.1 Series
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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/xid1404000 · retrieved 2026-07-17