Operator Name | Description |
---|---|

fel_div, laplacian | Alternative names for the finite element discretization of the divergence operator. Computes -divergence |

box_div, box_laplacian | Alternative names for the finite volume discretization of the divergence operator. Computes -divergence |

volume, nodal,
diagonalweight |
Alternative names for the finite volume discretization of the nodal-weighting operator |

transient, gnodal,
gvolume |
Alternative names for the transient operator |

convection | Finite element discretization of the grid convection operator |

box_convection | Finite volume discretization of the grid convection operator |

interface | Finite volume discretization of nodal boundary conditions |

dirichlet | Enforce Dirichlet boundary conditions |

constraint | Enforce a constraint on nodal values across an interface |

dummy | Identity operator (multiplies term by unity; usually used only with functions, not PDE terms) |