Formulation: automatic mode / user mode
Introduction
Two operating modes are provided to manage the formulations in the various regions of the domain (see table below).
| Mode | Assignment of formulations in regions | Available formulations | Advantage |
|---|---|---|---|
| automatic |
automatic (by Flux) * |
formulations of the scalar model |
easy to use |
| user | by the user |
formulations of the scalar model & of the vector model |
carrying out of particular cases (for advanced users) |
Automatic mode
In automatic mode, a list of predefined criteria enables an automatic assignment of an adequate formulation to each region of the problem. This assignment is carried out right before solving of the Flux project.
User mode
In user mode:
- selection of the model is carried out in the dialog box of the application definition:
- formulations of the scalar model
- formulations of the vector model
-
general formulations: set of formulations
(scalar model and vector model)
- selection of the formulation is carried out during the definition of regions (selection of a type, formulation, material...)
Change of model
The change of a model of formulation for another involves modifications for the regions.
It is then recommended to check the definition of all regions before continuing the description of the problem.