<b>Create Mesh</b> menu. These hypotheses are actually changes in the
rules of mesh creation and as such don't possess adjustable values.
+\anchor non_conform_allowed_anchor
<h2>Non Conform mesh allowed hypothesis</h2>
<b>Non Conform mesh allowed</b> hypothesis allows to generate non-conform
meshes (that is, meshes having some edges ending on an edge or face of
adjacent elements).
+\anchor quadratic_mesh_anchor
<h2>Quadratic Mesh</h2>
Quadratic Mesh hypothesis allows to build a quadratic mesh (whose
edges are not straight but broken lines and can be defined by three
points: first, middle and last) instead of an ordinary one.
+\anchor propagation_anchor
<h2>Propagation of 1D Hypothesis on opposite edges</h2>
<b>Propagation of 1D Hypothesis on opposite edges</b> allows to propagate a
propagation are defined on an edge of a quadrangular face, the
opposite edge will have the same hypothesis, unless another hypothesis
has been locally defined on the opposite edge.
-
+
<br><b>See Also</b> a sample TUI Script of a
-\ref tui_propagation "Propagation hypothesis" operation.
+\ref tui_propagation "Propagation hypothesis" operation
+
+\anchor quadrangle_preference_anchor
+<h2>Quadrangle Preference</h2>
+
+This additional hypothesis can be used together with 2D triangulation algorithms.
+It allows 2D triangulation algorithms to build quadrangular meshes.
+
+When used with "Quadrangle (Mapping)" meshing algorithm, that is obsolete
+ since introducing \ref hypo_quad_params_anchor "Quadrangle parameters"
+hypothesis, this hypothesis has one restriction on its work: the total quantity of
+segments on all four sides of the face must be even (divisible by 2).
+
+\anchor viscous_layers_anchor
+<h2>Viscous Layers</h2>
+
+<b>Viscous Layers</b> additional hypothesis can be used together with
+some 3D algorithms, Hexahedron(i,j,k) for example. This
+hypothesis allows creation of layers of highly stretched prisms near
+mesh boundary, which is beneficial for high quality viscous
+computations. The prisms constructed on the quadrangular mesh faces are
+actually the hexahedrons.
+
+
+\image html viscous_layers_hyp.png
+
+<ul>
+<li><b>Name</b> - allows to define the name of the hypothesis.</li>
+<li><b>Total thicknes</b> - gives the total thickness of prism layers.</li>
+<li><b>Number of layers</b> - defines the number of prism layers.</li>
+<li><b>Stretch factor</b> - defines the growth factor of prism height
+from the mesh boundary inwards.</li>
+<li><b>Faces without layers</b> - defines geometrical faces on which
+prism layers should not be constructed. By default the prism layers
+are not constructed on geometrical faces shared by solids.</li>
+</ul>
+
+\image html viscous_layers_mesh.png A group containing viscous layer prisms.
+
+<br><b>See also</b> a sample TUI script of a \ref tui_viscous_layers
+"Viscous layers construction".
+
-*/
\ No newline at end of file
+*/
