to ensure 'patchType' is set as specified.
Required substantial change to the organization of the reading of the
'value' entry requiring careful testing and there may be some residual
issues remaining. Please report any problems with the reading and
initialization of patch fields.
Resolves bug-report http://bugs.openfoam.org/view.php?id=2266
e.g. for the cavity tutorial the moving wall patch can be specified in
terms of the block vertices as before:
boundary
(
movingWall
{
type wall;
faces
(
(3 7 6 2)
);
}
.
.
.
or the new specification of the face as block 0, block face 3:
boundary
(
movingWall
{
type wall;
faces
(
(0 3)
);
}
Renamed the original 'laminar' model to 'Stokes' to indicate it is a
linear stress model supporting both Newtonian and non-Newtonian
viscosity.
This general framework will support linear, non-linear, visco-elastic
etc. laminar transport models.
For backward compatibility the 'Stokes' laminar stress model can be
selected either the original 'laminar' 'simulationType'
specification in turbulenceProperties:
simulationType laminar;
or using the new more general 'laminarModel' specification:
simulationType laminar;
laminar
{
laminarModel Stokes;
}
which allows other laminar stress models to be selected.
Required to support LTS with the -postProcess option with sub-models dependent on ddt
terms during construction, in particular reactingTwoPhaseEulerFoam.
Individual inward-pointing faces are checked and if all faces are
inward-pointing the block is inside-out. These errors are fatal and the
message indicates which block the error occurs in and where in the
blockMeshDict the block is defined.
Now the postProcess utility '-region' option works correctly, e.g. for
the chtMultiRegionSimpleFoam/heatExchanger case
postProcess -region air -func "mag(U)"
calculates 'mag(U)' for all the time steps in region 'air'.
using a run-time selectable preconditioner
References:
Van der Vorst, H. A. (1992).
Bi-CGSTAB: A fast and smoothly converging variant of Bi-CG
for the solution of nonsymmetric linear systems.
SIAM Journal on scientific and Statistical Computing, 13(2), 631-644.
Barrett, R., Berry, M. W., Chan, T. F., Demmel, J., Donato, J.,
Dongarra, J., Eijkhout, V., Pozo, R., Romine, C. & Van der Vorst, H.
(1994).
Templates for the solution of linear systems:
building blocks for iterative methods
(Vol. 43). Siam.
See also: https://en.wikipedia.org/wiki/Biconjugate_gradient_stabilized_method
Tests have shown that PBiCGStab with the DILU preconditioner is more
robust, reliable and shows faster convergence (~2x) than PBiCG with
DILU, in particular in parallel where PBiCG occasionally diverges.
This remarkable improvement over PBiCG prompted the update of all
tutorial cases currently using PBiCG to use PBiCGStab instead. If any
issues arise with this update please report on Mantis: http://bugs.openfoam.org
