now possible with level-sets as well as planes. Removed tetPoints class
as this wasn't really used anywhere except for the old tet-cutting
routines. Restored tetPointRef.H to be consistent with other primitive
shapes. Re-wrote tet-overlap mapping in terms of the new cutting.
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.
- adjust for updates in 'develop'
- change surfaceIntersection constructor to take a dictionary of
options.
tolerance | Edge-length tolerance | scalar | 1e-3
allowEdgeHits | Edge-end cuts another edge | bool | true
avoidDuplicates | Reduce the number of duplicate points | bool | true
warnDegenerate | Number of warnings about degenerate edges | label | 0
- cannot use comparison of list sizes. Okay for UList, but not here.
STYLE:
- don't need two iterators for the '<' comparison, can just access
internal storage directly
By specifying the optional outside surface emissivity radiative heat transfer to
the ambient conditions is enabled. The far-field is assumed to have an
emissivity of 1 but this could be made an optional input in the future if
needed.
Relaxation of the surface temperature is now provided via the optional
"relaxation" which aids stability of steady-state runs with strong radiative
coupling to the boundary.
- The existing ':' anchor works for rvalue substitutions
(Eg, ${:subdict.name}), but fails for lvalues, since it is
a punctuation token and parse stops there.
- support edge-ordering on construction, and additional methods:
- sort(), sorted(), unitVec(), collapse()
- null constructor initializes with -1, for consistency with face,
triFace and since it is generally much more useful that way.
- add some methods that allow edges to used somewhat more like hashes.
- count(), found(), insert(), erase()
Here is possible way to use that:
edge someEdge; // initializes with '-1' for both entries
if (someEdge.insert(pt1))
{
// added a new point label
}
... later
// unmark point on edge
someEdge.erase(pt2);
--
STYLE:
- use UList<point> instead of pointField for edge methods for flexibility.
The pointField include is retained, however, since many other routines
may be relying on it being included via edge.H
