Each solver now writes its sensitivity derivatives to its dictionary,
enabling also a binary format. If present, the sensitivities are then
re-read from the dictionary, avoiding thus possible loss of information
due to re-computation.
As a side-effect, sensitivities are computed after the completion of
each adjoint solver, instead of being computed after all adjoint solvers
have been completed.
for incompressible flows. The typical convention of appending the primal
field name with 'a' to form the adjoint field is followed for the
adjoint turbulent kinetic energy (i.e. 'ka') but since this would produce
an ugly variable name for the adjoint to omega (i.e. omegaa), the latter
is abbreviated to 'wa'.
The work is based on
\verbatim
Kavvadias, I., Papoutsis-Kiachagias, E.,
Dimitrakopoulos, G., & Giannakoglou, K. (2014).
The continuous adjoint approach to the k–$omega$ SST turbulence model with
applications in shape optimization
Engineering Optimization, 47(11), 1523-1542.
https://doi.org/10.1080/0305215X.2014.979816
\endverbatim
with changes in the discretisation of
a number of differential operators and the formulation of the adjoint to
the wall functions employed by the primal model.
Regarding the latter, the code assumes (and differentiates) the default
behaviour of nutkWallFunction (i.e. nutWallFunction::blendingType::STEPWISE)
and omegaWallFunction (i.e. omegaWallFunction::blendingType::BINOMIAL2).
Due to the availability of a number of terms required for the
formulation of the wall function for ka, the latter is implemented
within adjointkOmegaSST itself, with contributions from objective functions
implemented within kaqRWallFunction. Wall functions for wa are
implemented within waWallFunction.
The initial implementation of the above-mentioned reference was
performed by Dr. Ioannis Kavvadias
the Jacobian of an objective function, defined at the boundary, wrt nut
and gradU. Also modified the current objectives that include such
contributions
- update the area-centres processor/processor information as part of
faMesh::init() after all of the global data and geometry data is
setup.
- improve flattenEdgeField helper to properly handle empty patches.
This change removes the false fails when testing edge-centre
redistribution (FULLDEBUG mode).
TUT: add filmPanel (rivulet) tutorial
- include constant/faMesh cleanup (cleanFaMesh) as part of standard
cleanCase
- simplify cleanPolyMesh function to now just warn about old
constant/polyMesh/blockMeshDict but not try to remove anything
- cleanup cellDist.vtu (decomposePar -dry-run) as well
ENH: foamRunTutorials - fallback to Allrun-parallel, Allrun-serial
TUT: call m4 with file argument instead of redirected stdin
TUT: adjust suffixes on decomposeParDict variants
- enables runtime selection of operand coefficients by 'coefficients' entry
- removes binning - now handled using the new 'binField' FO
Co-authored-by: Kutalmis Bercin <kutalmis.bercin@esi-group.com>
The new 'binField' function object calculates binned data,
where specified patches are divided into segments according to
various input bin characteristics, so that spatially-localised
information can be output for each segment.
Co-authored-by: Kutalmis Bercin <kutalmis.bercin@esi-group.com>
- simpler to write for sampled cutting planes etc.
For example,
slice
{
type cuttingPlane;
point (0 0 0);
normal (0 0 1);
interpolate true;
}
instead of
slice
{
type cuttingPlane;
planeType pointAndNormal;
pointAndNormalDict
{
point (0 0 0);
normal (0 0 1);
}
interpolate true;
}
STYLE: add noexcept to some plane methods
- Previous state of the condition was largely inoperative
due to bugs and lack of functionalities
- New state of the condition is more versatile, elegant, robust and faster
ENH: turbulentDigitalFilter: add new scalar-based synthetic turbulence condition
- Realistic temperature and/or concentration fluctuations
can be generated based on given input statistics
- can specify rotations that are not "axes" in a compact form:
transform
{
origin (0 0 0);
rotation none;
}
transform
{
origin (0 0 0);
rotation axisAngle;
axis (0 0 1);
angle 45;
}
An expanded dictionary form also remains possible:
transform
{
origin (0 0 0);
rotation
{
type axisAngle;
axis (0 0 1);
angle 45;
}
}
STYLE: verbose deprecation for "coordinateRotation" keyword
- the "coordinateRotation" keyword was replaced by the "rotation"
keyword (OpenFOAM-v1812 and later) but was handled silently.
Now elevated to non-silent.
STYLE: alias lookups "axesRotation", "EulerRotation", "STARCDRotation"
- these warn and report the equivalent short form, which aids in
upgrading. Previously had silent lookups.
- append single character
- make append() methods void: methods are never chained anyhow
- refactor digest comparison (code reduction)
COMP: add overflow handling for OSHA1stream
- add overflow() method to the SHA1 streambuf. Previously could rely
on xsputn for adding to sha1 content, but streams now check pptr()
first to test for the buffering range and thus overflow() is needed.
