for consistency with the handling of restarts in Time. See
commit 7aca9bfa78
Author: Henry Weller <http://cfd.direct>
Date: Fri Dec 11 13:37:16 2020 +0000
Time: Added beginTime used to rationalise the write times when restarting
Now if a case is restarted from an arbitrary time, for example one generated at
a premature stop condition, or with an increased writeInterval, the subsequent
time directories written are referenced to the original start time of the case
rather than the restart time.
The themo tables used in wallBoiling have had their Cp/Cv values
corrected, and have been coarsened and reduced in size to bound only the
operating point of the wallBoiling tutorials. They have also been moved
to $FOAM_TUTORIALS/resources/thermoData.
The correction to thermophysical properties has improved the stability
of these cases. As a result it has been possible to reduce the amount of
under-relaxation used in the wall modelling.
The phase-fraction filtering of the compressibility terms is present to avoid
spurious phase-change due to numerical noise. The fvModels contribution may
cause physical phase-change due to cavitation, boiling, transfer from film or
VoF even where none of the phase is present and hence must be added after the
compressibility filtering.
With VoFClouds and VoFSurfaceFilm compressibleInterFoam supports Lagrangian
clouds which can impinge on walls forming a film which in turn can transfer to
the VoF when the film is thick enough to resolve. The new tutorial case
tutorials/multiphase/compressibleInterFoam/laminar/cylinder
is provided to demonstrate this functionality.
Direct transfer of droplets to the VoF phase is not yet supported but will be
added later.
A cloud may now contain species that do not exist within the carrier
thermodynamics. Correspondence between lagrangian and carrier components
is only required when there is phase change.
The thermo parcel now supports thermophysical property modelling. This
particle does not store phase or specie fractions so it only provides a
single phase with a uniform composition. Additional specification is
required in the cloud subModel configuration in order to select the
specie. For example:
compositionModel singlePhaseMixture;
singlePhaseMixtureCoeffs
{
phases
(
solid
{
CaCO3 1;
}
);
}
The reduced SLGThermo has been renamed parcelThermo to better represent the
purpose.
parcelThermo is not created and stored in the cloud that requires it rather than
requiring it to be created in the solver createFields and passed to the cloud on
construction.
This makes usage of transformPoints the same as for
surfaceTransformPoints. Transformations are supplied as a string and are
applied in sequence.
Usage
transformPoints "\<transformations\>" [OPTION]
Supported transformations:
- "translate=<translation vector>"
Translational transformation by given vector
- "rotate=(<n1 vector> <n2 vector>)"
Rotational transformation from unit vector n1 to n2
- "Rx=<angle [deg] about x-axis>"
Rotational transformation by given angle about x-axis
- "Ry=<angle [deg] about y-axis>"
Rotational transformation by given angle about y-axis
- "Rz=<angle [deg] about z-axis>"
Rotational transformation by given angle about z-axis
- "Ra=<axis vector> <angle [deg] about axis>"
Rotational transformation by given angle about given axis
- "scale=<x-y-z scaling vector>"
Anisotropic scaling by the given vector in the x, y, z
coordinate directions
Example usage:
transformPoints \
"translate=(-0.05 -0.05 0), \
Rz=45, \
translate=(0.05 0.05 0)"
Now the VoFSurfaceFilm library is optionally loaded at run-time for cases that
require surface film by adding the optional "libs" entry in controlDict:
libs ("libVoFSurfaceFilm.so");
See tutorials/multiphase/compressibleInterFoam/laminar/plateFilm
Now the VoFSurfaceFilm library is optionally loaded at run-time for cases that
require surface film by adding the optional "libs" entry in controlDict:
libs ("libVoFSurfaceFilm.so");
See tutorials/multiphase/compressibleInterFoam/laminar/plateFilm
The property entries created by the "none" models were not formatted
correctly, oweing to the lack of a base name or model name in the
sub-model base. These erroneous entries then resulted in restart
failures.
in particular for equations of state which do not support coefficient mixing
required by equilibrium constant evaluation in reactions.
Also improved the set of pre-compiled combinations of properties and mixing
rules.
Description
Deferred correction interpolation scheme derived from upwind
which returns upwind weighting factors and an explicit correction obtained
from the specified scheme.
This ensures that the transport matrix generated is at least diagonally
equal and avoids the need for relaxation of the matrix (which can affect
conservation) for transient running.
e.g.
divSchemes
{
default none;
div(phi,U) Gauss deferred limitedLinear 1;
.
.
.
and with this setting relaxation of the U-equation is not necessary irrespective
of the Courant number.
Unused entries have been removed, and documentation provided for
previously undocumented entries has been added.
Patch contributed by Francesco Contino
