36. Granular Settings

Note

Feature requires a Momentum Granular license.

The Granular Settings button will bring out a pull down menu with the settings related to granular functionality for the activated simulation.

The granular settings will be stored in the document.

Number of Iterations: The number of iterations that should be used in the iterative solver for continous granular and rigid body contacts. See Granular Contact Model and configuration guideline.

Impact Iterations: The number of impact iterations that should be used in the impact solve stage for granular contacts and iterative rigid body impacts. See Impact Iterations and configuration guideline.

Enable Parallel Solver: Specifies whether the Parallel Projected Gauss-Seidel Solver should be used for solving granular contacts and iterative rigid body contacts. See Granular Contact Model.

Enable Float Solver: Specifies whether the Parallel-Gauss-Seidel Solver should use 32bit float data. Enabling this increases computation speed.

Enable Warm Starting: Specifies if warm starting should be used in the Parallel-Gauss-Seidel Solver for granular contacts. This can be used to achieve more stable solutions over time with less iterations. See Granular Contact Model.

External Particle Triangle Rendering: Enables fallback rendering of particles in External Simulation when using hardware that does not support the default rendering method.

Enable Template Convex Detection: Determines if convex detection should be enabled for Template geometries. This reduces the geometrical complexity of convex trimeshes for increased performance.

Convex Detection Threshold: The detection threshold is the fraction of size of the mesh’s smallest bound dimension that is allowed in vertex deviation from a perfect convex configuration.

Characteristic Diameter: Prints out the calculated characteristic diameter that is used to automatically calculate the proper impact threshold in a simulation. This value is determined by calculating the average characteristic diameter for the particle models currently active in the document. See Granular Contact Model.

Enable Impact Threshold: Specifies whether an impact velocity threshold should be calculated. If a contact velocity exceeds this threshold value, a contact will be treated as a impact. See Granular Contact Model.

Estimate Characteristic Diameter: Specifies if the impact velocity threshold should be automatically calculated from the available particle models in the document. See Granular Contact Model.

Characteristic Diameter: Prints out the calculated characteristic diameter that is used to automatically calculate the proper impact threshold in a simulation. This value is determined by calculating the average characteristic diameter for the particle models currently active in the document. See Granular Contact Model.