Translations:FEM EquationFlow/15/en

The flow equation provides these special settings:
 * : To be set to true for incompressible flow for more stable discretization when the Reynolds number increases.
 * : The flow model that should be used. The default Full includes convection and time derivative terms in the model. No convection switches off the convection terms and the Stokes model switches off the convection terms and the (explicit) time derivative terms.
 * : If set to true pressure Dirichlet boundary conditions can be used. Also the mass flux is available as a natural boundary condition.
 * : Optional only for calculations in 2D: You can change the default of 3 to 2. Note: In this case none of the flow velocity constraints can have a specified z-component.