/ALE/GRID/SPRING - Modify Parameters for ALE Grid Formulation
Description
Description
With this keyword it is possible to modify grid formulation parameters which initially be set in Starter keyword /ALE/GRID/SPRING. (Altair bar method for grid velocity computation).
Format
/ALE/GRID/SPRING
Data |
Description |
SI Unit Example |
Typical time step (Real) |
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Nonlinearity factor Range: [0;1] (Real) |
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Damping coefficient (Real) |
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Shear scale factor (Real) |
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Vmin |
Minimum volume for element deletion (Real) |
1. | For more details, refer to ALE Grid Calculation in the User's Guide and /ALE/GRID/SPRING in the Starter Reference Guide. |
As of v12.0.210, /ALE/2 was replaced by /ALE/GRID/SPRING.
2. | The must be greater than the actual time step used in simulation. |
3. | The is used to prevent the time step from dropping due to element collapse. |
means no nonlinear effects
means less weight is given to elements that do not collapse
4. | Default values are taken from a previous run. |
See Also: