What is meant by automatic refinement?
The term "automatic refinement" refers to a process where the computational mesh or model is autonomously refined in specific areas to increase the accuracy of the simulation. This typically occurs in regions with complex geometries or high gradients in the results.
Typical software functions in the area of "automatic refinement":
- Error indicator calculation: Identification of areas with high numerical errors or gradients.
- Adaptive mesh refinement: Automatic subdivision of elements in areas with high errors.
- Hierarchical refinement: Stepwise refinement of the mesh while maintaining the mesh structure.
- Load-adaptive refinement: Adjustment of the mesh based on calculated stresses or deformations.
- Geometry-based refinement: Automatic detection and refinement at complex geometric features.
- Convergence analysis: Verification of result accuracy after each refinement level.
Examples of "automatic refinement":
- Local mesh refinement at stress concentrations in a component.
- Adaptive refinement of the flow mesh in areas with high velocity gradients.
- Hierarchical octree refinement in volume visualization.
- Automatic refinement at contact points between different components.
- Load-adaptive mesh adjustment in nonlinear structural analyses.
- Geometry-based refinement at sharp edges and small holes.