- manifest in some parallel operations.
STYLE: update foamToEnsight, foamToEnsightParts to use C++ initializer_list
- avoid warning message when removing a non-existent directory (ensight output).
* MeshedSurface / surfMesh / triSurface
- use shorter method names similar to those from volume meshes:
Sf(), magSf(), Cf()
instead of the longer ones from PrimitivePatch:
faceAreas(), magFaceAreas(), faceCentres()
- similar names throughout to ease switching between triSurface and
MeshedSurface storage.
- Write differences with respect to the specified dictionary
(or sub entry if -entry specified)
- Write the differences with respect to a template dictionary:
foamDictionary 0/U -diff $FOAM_ETC/templates/closedVolume/0/U
- Write the differences in boundaryField with respect to a
template dictionary:
foamDictionary 0/U -diff $FOAM_ETC/templates/closedVolume/0/U \
-entry boundaryField
Patch contributed by Mattijs Janssens
- Place common code under OSspecific.
By including "endian.H", either one of WM_BIG_ENDIAN or WM_LITTLE_ENDIAN
will be defined.
Provides inline 32-bit and 64-bit byte swap routines that can be
used/re-used elsewhere.
The inplace memory swaps currently used by the VTK output are left for
the moment pending further cleanup of that code.
For example, to mesh a sphere with a single block the geometry is defined in the
blockMeshDict as a searchableSurface:
geometry
{
sphere
{
type searchableSphere;
centre (0 0 0);
radius 1;
}
}
The vertices, block topology and curved edges are defined in the usual
way, for example
v 0.5773502;
mv -0.5773502;
a 0.7071067;
ma -0.7071067;
vertices
(
($mv $mv $mv)
( $v $mv $mv)
( $v $v $mv)
($mv $v $mv)
($mv $mv $v)
( $v $mv $v)
( $v $v $v)
($mv $v $v)
);
blocks
(
hex (0 1 2 3 4 5 6 7) (10 10 10) simpleGrading (1 1 1)
);
edges
(
arc 0 1 (0 $ma $ma)
arc 2 3 (0 $a $ma)
arc 6 7 (0 $a $a)
arc 4 5 (0 $ma $a)
arc 0 3 ($ma 0 $ma)
arc 1 2 ($a 0 $ma)
arc 5 6 ($a 0 $a)
arc 4 7 ($ma 0 $a)
arc 0 4 ($ma $ma 0)
arc 1 5 ($a $ma 0)
arc 2 6 ($a $a 0)
arc 3 7 ($ma $a 0)
);
which will produce a mesh in which the block edges conform to the sphere
but the faces of the block lie somewhere between the original cube and
the spherical surface which is a consequence of the edge-based
transfinite interpolation.
Now the projection of the block faces to the geometry specified above
can also be specified:
faces
(
project (0 4 7 3) sphere
project (2 6 5 1) sphere
project (1 5 4 0) sphere
project (3 7 6 2) sphere
project (0 3 2 1) sphere
project (4 5 6 7) sphere
);
which produces a mesh that actually conforms to the sphere.
See OpenFOAM-dev/tutorials/mesh/blockMesh/sphere
This functionality is experimental and will undergo further development
and generalization in the future to support more complex surfaces,
feature edge specification and extraction etc. Please get involved if
you would like to see blockMesh become a more flexible block-structured
mesher.
Henry G. Weller, CFD Direct.
- Use ensightCase for case writing.
Rebase ensightPartCells/ensightPartFaces on
ensightCells/ensightFaces routines.
- Greatly reduces code duplication potential source of errors.
- eliminate ensightAsciiStream, ensightBinaryStream, ensightStream in
favour of using ensightFile and ensightGeoFile classes throughout.
- encapsulate mesh-parts sorting with the ensightCells, ensightFaces
class.
- handle of patches/faceZones entirely within ensightMesh for a lighter
interaction with field output. Both faceZones and point fields need
more testing to see if they behave properly for all cases.
- move some output functionality into its own namespace
'ensightOutput', move into a library.
- use the ensightCase class to open new ensight output streams
in the proper sub-directory locations.
- CGAL itself includes its library dependencies, we only need to
provide the -L... option to the proper ThirdParty locations.
Should help improve general build robustness.
- instead we use the CGAL settings directly since they have the
same option of (version | system | none)
- may wish to review this again in the future.
blockMesh -help
Usage: blockMesh [OPTIONS]
options:
-blockTopology write block edges and centres as .obj files
-case <dir> specify alternate case directory, default is the cwd
-dict <file> specify alternative dictionary for the blockMesh description
-noFunctionObjects
do not execute functionObjects
-region <name> specify alternative mesh region
-srcDoc display source code in browser
-doc display application documentation in browser
-help print the usage
Block description
For a given block, the correspondence between the ordering of
vertex labels and face labels is shown below.
For vertex numbering in the sequence 0 to 7 (block, centre):
faces 0 (f0) and 1 are left and right, respectively;
faces 2 and 3 are bottom and top;
and faces 4 and 5 are front the back:
4 ---- 5
f3 |\ |\ f5
| | 7 ---- 6 \
| 0 |--- 1 | \
| \| \| f4
f2 3 ---- 2
f0 ----- f1
Using: OpenFOAM-dev (see www.OpenFOAM.org)
Build: dev-dc59c63351e7
- Less looping when detecting lagrangian clouds and their fields.
- Avoid using Time::setTime() and IOobjectList in tight loops.
They both kill performance immensely.
ENH: provide a -noLagrangian option to foamToEnsight and foamToEnsightParts
for even more control.
