ForkMaster/smesh
1
0
Fork 0
mirror of https://git.salome-platform.org/gitpub/modules/smesh.git synced 2024-11-15 10:08:34 +05:00
Code Issues Packages Projects Releases Wiki Activity

0021543: EDF 1978 SMESH: Viscous layer for 2D meshes

Browse Source
This commit is contained in:
eap 2012-11-13 13:32:39 +00:00
parent 07cb4aeb08
commit 0aeda4c376
1 changed files with 22 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
doc/salome/gui/SMESH/input/additional_hypo.doc
View File

@ -20,8 +20,8 @@ adjacent elements).
<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.
edges are not straight but curved lines and can be defined by three
points: first, middle and last instead of an ordinary two).
\anchor propagation_anchor
<h2>Propagation of 1D Hypothesis on opposite edges</h2>
@ -47,32 +47,33 @@ hypothesis, this hypothesis has one restriction on its work: the total quantity
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.
<h2>Viscous Layers and Viscous Layers 2D</h2>
<b>Viscous Layers</b> and <b>Viscous Layers 2D </b> additional
hypotheses can be used together with some 3D algorithms,
Hexahedron(i,j,k) for example, and 2D algorithm, 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
<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
<li><b>Total thicknes</b> - gives the total thickness of element layers.</li>
<li><b>Number of layers</b> - defines the number of element layers.</li>
<li><b>Stretch factor</b> - defines the growth factor of element 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.
\note A mesh shown in the 3D Viewer can prevent selection of faces,
in this case just hide the mesh. To prevent a long waiting when a
geometry with many faces is displayed, a number of faces shown at a time
is limited by the value of "Sub-shapes preview chunk size" preference
(in Preferences/Mesh/General tab).
<li><b>Faces (Edges) without layers</b> - defines geometrical faces
(or edges in 2D) on which element layers should not be
constructed. By default the element layers are not constructed on
geometrical faces shared by solids (and edges shared by faces in 2D).
\note A mesh shown in the 3D Viewer can prevent selection of faces
and edges, in this case just hide the mesh. To prevent a long waiting when a
geometry with many faces (or edges) is displayed, a number of faces
(edges) shown at a time is limited by the value of "Sub-shapes
preview chunk size" preference (in Preferences/Mesh/General tab).
</li>
</ul>