Commit Graph

9 Commits

Author SHA1 Message Date
8ed92de98c src/OpenFOAM: Rationalised use of enumerations by using the C++11 scoped form
for

    db/functionObjects/timeControl/timeControl.H: timeControls
    primitives/bools/Switch/Switch.H: class switchType
    primitives/strings/fileName/fileName.H: fileType
    primitives/strings/wordRe/wordRe.H: compOption
2018-08-25 07:26:51 +01:00
bf54ab67e1 Updated OpenFOAM Foundation web-link in headers 2018-07-06 21:42:54 +01:00
4fd4fadab2 lagrangian: Un-templated the tracking data
Tracking data classes are no longer templated on the derived cloud type.
The advantage of this is that they can now be passed to sub models. This
should allow continuous phase data to be removed from the parcel
classes. The disadvantage is that every function which once took a
templated TrackData argument now needs an additional TrackCloudType
argument in order to perform the necessary down-casting.
2017-09-04 12:01:28 +01:00
371762757d Lagrangian: Rewrite of the particle tracking algorithm to function in
terms of the local barycentric coordinates of the current tetrahedron,
rather than the global coordinate system.

Barycentric tracking works on any mesh, irrespective of mesh quality.
Particles do not get "lost", and tracking does not require ad-hoc
"corrections" or "rescues" to function robustly, because the calculation
of particle-face intersections is unambiguous and reproducible, even at
small angles of incidence.

Each particle position is defined by topology (i.e. the decomposed tet
cell it is in) and geometry (i.e. where it is in the cell). No search
operations are needed on restart or reconstruct, unlike when particle
positions are stored in the global coordinate system.

The particle positions file now contains particles' local coordinates
and topology, rather than the global coordinates and cell. This change
to the output format is not backwards compatible. Existing cases with
Lagrangian data will not restart, but they will still run from time
zero without any modification. This change was necessary in order to
guarantee that the loaded particle is valid, and therefore
fundamentally prevent "loss" and "search-failure" type bugs (e.g.,
2517, 2442, 2286, 1836, 1461, 1341, 1097).

The tracking functions have also been converted to function in terms
of displacement, rather than end position. This helps remove floating
point error issues, particularly towards the end of a tracking step.

Wall bounded streamlines have been removed. The implementation proved
incompatible with the new tracking algorithm. ParaView has a surface
LIC plugin which provides equivalent, or better, functionality.

Additionally, bug report <https://bugs.openfoam.org/view.php?id=2517>
is resolved by this change.
2017-04-28 09:25:10 +01:00
a8bf4be58a Standardized cell, patch, face and processor loop index names 2016-04-25 12:00:53 +01:00
8c4f6b8fcb Standardized cell, patch and face loop index names 2016-04-25 10:28:32 +01:00
71c6af8fe9 mapFields: Reinstated mapFields from OpenFOAM-2.2.x and renamed the current mapFields -> mapFieldsPar
This required the addition of the meshToMesh class in the sampling
library from OpenFOAM-2.2.x which is now named meshToMesh0.
2015-05-26 11:32:46 +01:00
de2c2fb007 Rationalize position searching and add cell->tet decomposition as the default cell-search algorithm
Resolves issues with probes and findRefCell for meshes in which all cell face-pyramids are positive.
2015-02-25 10:57:06 +00:00
446e5777f0 Add the OpenFOAM source tree 2014-12-10 22:40:10 +00:00