/*! \page additional_hypo_page Additional Hypotheses \n Additional Hypotheses can be applied as a supplement to the main hypotheses, introducing additional concepts to mesh creation. An Additional Hypothesis can be defined in the same way as any main hypothesis in \ref create_mesh_anchor "Create Mesh" or \ref constructing_submeshes_page "Create Sub-Mesh" dialog. The following additional hypothesis are available: \anchor propagation_anchor

Propagation of 1D Hypothesis on opposite edges

Propagation of 1D Hypothesis on opposite edges allows to mesh opposite sides of a quadrangle face and other adjacent quadrangles, using the same hypothesis assigned to only one edge.
Thus you define a sub-mesh on the edge where you define 1D meshing parameters and the \b Propagation hypothesis. These local meshing parameters will be propagated via opposite sides of quadrangles to the whole geometry, and this propagation stops at an edge with other local meshing parameters. This hypothesis can be taken into account by \ref a1d_algos_anchor "Wire Discretization" and \ref a1d_algos_anchor "Composite Side Discretization" algorithms. See Also a sample TUI Script of a \ref tui_propagation "Propagation hypothesis" operation \anchor propagofdistribution_anchor

Propagation of Node Distribution on Opposite Edges

Propagation of Node Distribution on Opposite Edges allows to propagate distribution of nodes onto an opposite edge. If a local hypothesis and propagation are defined on an edge of a quadrangular face, the opposite edge will have the same number of nodes and the same relations between segment lengths, unless another hypothesis has been locally defined on the opposite edge. This hypothesis can be taken into account by \ref a1d_algos_anchor "Wire Discretization" and \ref a1d_algos_anchor "Composite Side Discretization" algorithms. See Also a sample TUI Script of a \ref tui_propagation "Propagation hypothesis" operation \anchor viscous_layers_anchor

Viscous Layers and Viscous Layers 2D

Viscous Layers and Viscous Layers 2D additional hypotheses can be used by several 3D algorithms, for example Hexahedron(i,j,k), or 2D algorithms, for example Triangle (MEFISTO), correspondingly. These hypotheses allow creation of layers of highly stretched elements, prisms in 3D and quadrilaterals in 2D, near mesh boundary, which is beneficial for high quality viscous computations. \image html viscous_layers_hyp.png \image html viscous_layers_2d_hyp.png \image html viscous_layers_mesh.png A group containing viscous layer prisms.
See also a sample TUI script of a \ref tui_viscous_layers "Viscous layers construction". \anchor quadratic_mesh_anchor

Quadratic Mesh

Quadratic Mesh hypothesis allows to build a quadratic mesh (in which links between element nodes are not straight but curved lines due to presence of an additional mid-side node). This 1D hypothesis can be taken into account by \ref a1d_algos_anchor "Wire Discretization" and \ref a1d_algos_anchor "Composite Side Discretization" algorithms. To create a quadratic mesh assign this hypothesis at \ref constructing_meshes_page "mesh construction". See \ref adding_quadratic_elements_page for more information about quadratic meshes. \anchor quadrangle_preference_anchor

Quadrangle Preference

This additional hypothesis can be used together with 2D triangulation algorithms. It allows 2D triangulation algorithms to build quadrangular meshes. Usage of this hypothesis with "Quadrangle (Mapping)" meshing algorithm is obsolete since introducing \ref hypo_quad_params_anchor "Quadrangle parameters" hypothesis. Usage of this hypothesis with "Quadrangle (Mapping)" meshing algorithm corresponds to specifying "Quadrangle Preference" transition type of \ref hypo_quad_params_anchor "Quadrangle parameters" hypothesis. \note "Quadrangle Preference" transition type can be used only if the total quantity of segments on all sides of the face is even (divisible by 2), else "Standard" transition type is used. */