/ALE/GRID/STANDARD - Modify Parameters for ALE Grid Formulation
Description
With this keyword it is possible to modify grid formulation parameters, which initially were set in Starter keyword /ALE/GRID/STANDARD. (Altair standard method for grid velocity computation).
Format
/ALE/GRID/STANDARD
Data |
Description |
SI Unit Example |
Scale factor on maximum stiffness (Real) |
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Nonlinearity factor for edge spring stiffness (Real) |
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Damping coefficient (Real) |
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lc |
Characteristic length (Real) |
1. | Default values are taken from a previous run. |
2. | As of v12.0.210, /ALE/4 was replaced by /ALE/GRID/STANDARD. |
3. | Mesh auto correction can be introduced by giving more weight to anti-shear forces by either: |
• | Setting lc parameter close to the mesh size. |
• | Setting a negative value for parameter (elastic forces on edges are set to 0 at the first cycle of current run). |
See Also: