These cases now check for a mesh in geometrically identical cases and
copy rather than re-generate if possible. This reduces the run-time of
the test loop by about 20 minutes.
This change adds representation of the shape of a dispersed phase. A
layer has been added to model the relationship between the
characteristic volume of a sizeGroup and its physical diameter.
Previously this relationship was represented by a constant form factor.
Currently, two shape models are available:
- spherical
- fractal (for modelling fractal agglomerates)
The latter introduces the average surface area to volume ratio, kappa,
of the entities in a size group as a secondary field-dependent internal
variable to the population balance equation, which makes the population
balance approach "quasi-"bivariate. From kappa and a constant mass
fractal dimension, a collisional diameter can be derived which affects
the coagulation rates computed by the following models:
- ballisticCollisions
- brownianCollisions
- DahnekeInterpolation
- turbulentShear
The fractal shape modelling also takes into account the effect of sintering
of primary particles on the surface area of the aggregate.
Further additions/changes:
- Time scale filtering for handling large drag and heat transfer
coefficients occurring for particles in the nanometre range
- Aerosol drag model based on Stokes drag with a Knudsen number based
correction (Cunningham correction)
- Reaction driven nucleation
- A complete redesign of the sizeDistribution functionObject
The functionality is demonstrated by a tutorial case simulating the
vapour phase synthesis of titania by titanium tetrachloride oxidation.
Patch contributed by Institute of Fluid Dynamics, Helmholtz-Zentrum Dresden -
Rossendorf (HZDR) and VTT Technical Research Centre of Finland Ltd.
With the selection of the Boussinesq equation of state the general buoyancy
solvers buoyantSimpleFoam and buoyantPimpleFoam can be used instead of the
specialised Boussinesq solvers avoiding the need for special implementation of
thermal and pressure boundary conditions and providing support for radiation and
fvOptions which would not have been feasible or practical in the Boussinesq
solvers.
Other incompressible equations of state are also supported; for most gaseous
problems the incompressiblePerfectGas equation of state is likely to be more
accurate than the Boussinesq equation of state.
The buoyantBoussinesq[SP]impleFoam tutorials have been updated and moved to the
corresponding buoyant[SP]impleFoam directories.
The hook functions now all work in terms of local variables and argument
passing. They return error codes rather than exiting. Fixing issues
(updating copyright and correcting ifndef/define names) is now optional.
The "interactive" aspect of the pre-recieve hook has been removed and
placed into a new interactive-hook script that can be used for checking
without commiting. The pre-recieve-hook has been updated to include all
the newer checking added to pre-commit-hook.
A new "-empty" option launches ParaView without opening any files. This enables users
to run ParaView using the paraFoam script for all data (OpenFOAM or otherwise), making
use of the automatic launching with Mesa if system OpenGL fails.
To view OpenFOAM case files, run "paraFoam".
To view other data files, run "paraFoam -empty" and open the files within ParaView.
for consistency with WM_PROJECT. Now "etc" files are assumed to be in etc
sub-directories of WM_PROJECT_SITE and WM_PROJECT_INST_DIR allowing other files
to be stored in those directories. The search order is now:
Search for files from user/group/shipped directories.
The search scheme allows for version-specific and
version-independent files using the following hierarchy:
- \b user settings:
- ~/.OpenFOAM/\<VERSION\>/
- ~/.OpenFOAM/
- \b group (site) settings (when $WM_PROJECT_SITE is set):
- $WM_PROJECT_SITE/\<VERSION\>/etc/
- $WM_PROJECT_SITE/etc/
- \b group (site) settings (when $WM_PROJECT_SITE is not set):
- $WM_PROJECT_INST_DIR/site/\<VERSION\>/etc/
- $WM_PROJECT_INST_DIR/site/etc/
- \b other (shipped) settings:
- $WM_PROJECT_DIR/etc/
\return The list of full paths of all the matching files or
an empty list if the name cannot be found.
Optionally abort if the file cannot be found.
Optionally stop search after the first file has been found.
This change was proposed and agreed by the sponsors of the OpenFOAM project on
the OpenFOAM Hub, see https://openfoam.org/maintenance/
These options add the ability to show the plot in the terminal, and at
any size. This is intended to facilitate monitoring on remote machines
where launching an X11 application may not be convenient or possible.
Resolves feature request https://bugs.openfoam.org/view.php?id=3080
Uses sample configuration files in $FOAM_ETC/caseDicts, including
utility configuration files and packaged function objects. For
example:
foamGet decomposeParDict
foamGet extrudeMeshDict
foamGet createPatchDict
foamGet surfaces
Files are copied into the system directory by default, otherwise a
different target directory can be specified with -target|-t option.
Chris Greenshields, CFD Direct
The subject can relate to models (including boundary conditions and
packaged function objects), applications and scripts. For example:
foamInfo simpleFoam
foamInfo kEpsilon
foamInfo turbulentIntensityKineticEnergyInlet
foamInfo fixedTemperatureConstraint
foamInfo surfaces
foamInfo foamNewBC
The output includes the following:
- File: the location of the relevant source code header file;
- Description details from the header file;
- Usage details from the header file;
- Examples: a list of relevant cases from the tutorials directory.
foamInfo includes the -web|-w and -browser|-b options to open relevant
HTML source code documentation at https://cpp.openfoam.org
Chris Greenshields, CFD Direct
