- for simulations where the yPlus is needed for other purposes or
just for obtaining information on the patches it can be useful
to disable field writing and save disk space.
The 'writeFields' flag (as per some other function objects)
has been added control writing the yPlus volume field.
If unspecified, the default value is 'true' so that the yPlus
function object continues to work as before.
However, this default may change to 'false' in the future to align
with other function objects.
ENH: wallShearStress: support disable of field writing
- similar to yPlus, the write() method combines writing information
and writing the fields. The 'writeFields' flag allows some
separation of that logic.
- 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
- can now specify sampled sets as dictionary entries instead of a list
entry.
can now use: sets { ... }
instead of: sets ( ... );
This is similar to sampled surfaces and makes it easier to
manage with dictionary manipulation tools.
TUT: update to use writeTime instead of outputTime
Please refer to the header file documentation for complete set of details.
ENH: add new fvOptions for ABL modelling
- atmAmbientTurbSource
- atmBuoyancyTurbSource
- atmCoriolisUSource
- atmLengthScaleTurbSource
- atmPlantCanopyTurbSource
- atmPlantCanopyUSource
- atmPlantCanopyTSource
- atmNutSource
ENH: add new boundary conditions for ABL modelling
with PatchFunction1 and TimeFunction1 support
- atmAlphatkWallFunction
- atmEpsilonWallFunction
- atmNutkWallFunction
- atmNutUWallFunction
- atmNutWallFunction
- atmOmegaWallFunction
- atmTurbulentHeatFluxTemperature
STYLE: change names of nutkAtmRoughWallFunction -> atmNutkWallFunction by
ensuring the bitwise backward compatibility
ENH: add new variable-scaling force computation method to actuationDiskSource
ENH: review actuationDiskSource and radialActuationDiskSource
ENH: add new function object, ObukhovLength
ENH: add new ABL tutorials/verifications
- verificationAndValidation/atmosphericModels/atmFlatTerrain
- verification with the Leipzig field experiment
- illustration of precursor/successor field mapping
- verificationAndValidation/atmosphericModels/atmForestStability
- verification with the Sweden field experiment
- update incompressible/simpleFoam/turbineSiting
ENH: update libs of etc/caseDicts/postProcess items
ENH: ensure destructor=default
ENH: ensure constness
ENH: ensure no 'copy construct' and 'no copy assignment' exist
TUT: add examples of function objects with full set
of settings into a TUT if unavailable
TUT: update pisoFoam/RAS/cavity tutorial in terms of usage
ENH: add generalised log-law type ground-normal inflow boundary conditions for
wind velocity and turbulence quantities for homogeneous, two-dimensional,
dry-air, equilibrium and neutral atmospheric boundary layer (ABL) modelling
ENH: remove `zGround` entry, which is now automatically computed
ENH: add `displacement height` entry, `d`
ENH: add generalised atmBoundaryLayerInletOmega boundary condition
ENH: add a verification case for atmBoundaryLayerInlet BCs
DOC: improve atmBoundaryLayerInlet header documentation
BUG: fix value-entry behaviour in atmBoundaryLayerInlet (fixes#1578)
Without this change:
- for serial-parallel computations, if `value` entry is available in
an `atmBoundaryLayerInlet` BC, the theoretical ABL profile expressions
are not computed, and the `value` entry content is used as a profile data
- for parallel computations, if `value` entry is not available, `decomposePar`
could not be executed.
With this change:
- assuming `value` entry is always be present, the use of `value` entry for
the ABL profile specification is determined by a flag `initABL`
- the default value of the optional flag `initABL` is `true`, but whenever
`initABL=true` is executed, `initABL` is overwritten as `false` for the
subsequent runs, so that `value` entry can be safely used.
Thanks Per Jørgensen for the bug report.
BUG: ensure atmBoundaryInlet conditions are Galilean-invariant (fixes#1692)
Related references:
The ground-normal profile expressions (tag:RH):
Richards, P. J., & Hoxey, R. P. (1993).
Appropriate boundary conditions for computational wind
engineering models using the k-ε turbulence model.
In Computational Wind Engineering 1 (pp. 145-153).
DOI:10.1016/B978-0-444-81688-7.50018-8
Modifications to preserve the profiles downstream (tag:HW):
Hargreaves, D. M., & Wright, N. G. (2007).
On the use of the k–ε model in commercial CFD software
to model the neutral atmospheric boundary layer.
Journal of wind engineering and
industrial aerodynamics, 95(5), 355-369.
DOI:10.1016/j.jweia.2006.08.002
Expression generalisations to allow height
variation for turbulence quantities (tag:YGCJ):
Yang, Y., Gu, M., Chen, S., & Jin, X. (2009).
New inflow boundary conditions for modelling the neutral equilibrium
atmospheric boundary layer in computational wind engineering.
J. of Wind Engineering and Industrial Aerodynamics, 97(2), 88-95.
DOI:10.1016/j.jweia.2008.12.001
The generalised ground-normal profile expression for omega (tag:YGJ):
Yang, Y., Gu, M., & Jin, X., (2009).
New inflow boundary conditions for modelling the
neutral equilibrium atmospheric boundary layer in SST k-ω model.
In: The Seventh Asia-Pacific Conference on Wind Engineering,
November 8-12, Taipei, Taiwan.
Reproduced benchmark:
Rectangular prism shown in FIG 1 of
Hargreaves, D. M., & Wright, N. G. (2007).
On the use of the k–ε model in commercial CFD software
to model the neutral atmospheric boundary layer.
Journal of wind engineering and
industrial aerodynamics, 95(5), 355-369.
DOI:10.1016/j.jweia.2006.08.002
Benchmark data:
HW, 2007 FIG 6
TUT: update simpleFoam/turbineSiting tutorial accordingly
