Fast fill analysis
The Fast Fill analysis provides a quick and simple alternative to the standard Fill analysis.
It can be useful for an approximation of how a part should fill in a situation where accuracy is not a high priority.
The Fast Fill analysis and the standard Fill analysis have different characteristics, which are outlined below.
Characteristics
| Fast Fill analysis | Fill analysis |
|---|---|
| Incompressible | Compressible |
| 6 layers across full thickness | Up to 20 layers across full thickness |
| Aggressive melt front advancement | Conservative melt front advancement |
| Dynamic convergence criteria | Tight convergence criteria |
Compressibility
The incompressible flow in a Fast Fill analysis uses less CPU time than the compressible flow in a standard Fill analysis.
Layers
The Fast Fill analysis uses only 6 layers across the thickness of a flow front. This means that the data concerning heat conduction in the Fast Fill analysis is less detailed than in the standard Fill analysis (which uses up to 20 layers).
Melt front advancement
The aggressive melt front advancement of the Fast Fill analysis results in fewer time steps than the standard Fill analysis, and therefore a faster analysis time.
Convergence criteria
The loose convergence criteria towards the end of the Fast Fill analysis results in less CPU time. In the standard Fill analysis, more nodes are filled near the end of fill, thereby slowing the analysis down.