Use piecewise linear interface calculation (PLIC) for the reconstruction of the fluid interface from volume of fluid (VOF) fields.
The following input ports are available:
| Input | Description | Type | Remark |
|---|---|---|---|
| Grid | Grid containing a volume of fluid field. | Rectilinear Grid |
The grid contains the following data fields:
| Data field | Description | Data | Type | Remark |
|---|---|---|---|---|
| Volume of fluid field | A volume of fluid field, whose entries are in the range [0, 1]. | Scalar | Cell-based | |
| Interface gradients | Gradients in interface cells. | Vector | Cell-based | Optional. If not given, the gradients are computed by the filter itself. |
The following parameters can be set by the user:
| Parameter | Description | Type | Accepted values | Default value |
|---|---|---|---|---|
| Number of iterations | Number of iterations for the iterative approximation of the interface. | Integer | >0 | 15 |
| Perturbation of vertices | Perturbation on the input vertices to prevent degenerate cases, which often occur in the initial time steps of the simulation. | Double | ≥0 | 1e-5 |
The output is a polygonal mesh, for which the following data fields are provided:
| Data field | Description | Data | Type | Remark |
|---|---|---|---|---|
| Error | Error, defined as difference between input volume of fluid and volume enclosed by the reconstructed interface. | Scalar | Cell-based | This field is only available when setting the TPF debug flag. |