- previously just reported gcc/clang versions, but these are not
necessarily the ones actually being used (eg, clang-9 vs clang).
Now use the path from `wmake -show-path-cxx` to improve the accuracy,
and also support other compiler types.
1) New skewCorrectedSnGrad for non-orthogonal and skewness corrector
2) New freeSurfacePressure and freeSurfacePressure working with
interfaceTrackingFvMesh
3) New interfaceTrackingFvMesh
- now use debug 2 for scanner and debug 4 for parser.
Provided better feedback about what is being parsed (debug mode)
- relocate debug application to applications/tools/foamExprParserInfo
See GL #1433
Applies corrections to turbulence kinetic energy equation and turbulence
viscosity field for incompressible multiphase flow cases.
Turbulence kinetic energy is over-predicted in VOF solvers at the phase
interface and throughout the water column in nearly-potential flow regions
beneath surface waves.
This fvOption applies corrections based on the references:
Buoyancy source term in turbulence kinetic energy equation:
Devolder, B., Rauwoens, P., and Troch, P. (2017).
Application of a buoyancy-modified k-w SST turbulence model to
simulate wave run-up around a monopile subjected to regular waves
using OpenFOAM.
Coastal Engineering, 125, 81-94.
Correction to turbulence viscosity field:
Larsen, B.E. and Fuhrman, D.R. (2018).
On the over-production of turbulence beneath surface waves in
Reynolds-averaged Navier-Stokes models
J. Fluid Mech, 853, 419-460
Example usage:
multiphaseStabilizedTurbulence1
{
type multiphaseStabilizedTurbulence;
active yes;
multiphaseStabilizedTurbulenceCoeffs
{
// Optional coefficients
lambda2 0.1; // A value of 0 sets the nut correction to 0
Cmu 0.09; // from k-epsilon model
C 1.51; // model coefficient from k-omega model
alpha 1.36; // 1/Prt
}
}
Thanks go to the Turbulence Technical Committee, and the useful discussions
with and code testing by Bjarke Eltard-Larsen and David Fuhrman (Technical
University of Denmark).
ENH: modify fWallFunction for kEpsilonPhitF model
The k-epsilon-phit-f turbulence closure model for incompressible and
compressible flows.
The model is a three-transport-equation linear-eddy-viscosity turbulence
closure model alongside an elliptic relaxation equation:
- Turbulent kinetic energy, \c k,
- Turbulent kinetic energy dissipation rate, \c epsilon,
- Normalised wall-normal fluctuating velocity scale, \c phit,
- Elliptic relaxation factor, \c f.
Reference:
\verbatim
Standard model (Tag:LUU):
Laurence, D. R., Uribe, J. C., & Utyuzhnikov, S. V. (2005).
A robust formulation of the v2−f model.
Flow, Turbulence and Combustion, 73(3-4), 169–185.
DOI:10.1007/s10494-005-1974-8
\endverbatim
The default model coefficients are (LUU:Eqs. 19-20):
\verbatim
kEpsilonPhitFCoeffs
{
Cmu 0.22, // Turbulent viscosity constant
Ceps1a 1.4, // Model constant for epsilon
Ceps1b 1.0, // Model constant for epsilon
Ceps1c 0.05, // Model constant for epsilon
Ceps2 1.9, // Model constant for epsilon
Cf1 1.4, // Model constant for f
Cf2 0.3, // Model constant for f
CL 0.25, // Model constant for L
Ceta 110.0, // Model constant for L
CT 6.0, // Model constant for T
sigmaK 1.0, // Turbulent Prandtl number for k
sigmaEps 1.3, // Turbulent Prandtl number for epsilon
sigmaPhit 1.0, // Turbulent Prandtl number for phit = sigmaK
}
\endverbatim
Note
The name of the original variable replacing 'v2' is 'phi' (LUU:Eq. 14).
However, the name 'phi' preexisted in OpenFOAM; therefore, this name was
replaced by 'phit'
qem and qin were not set to zero for the wideBand model BC.
qin was used in the grey model BC to calculate Ir(the total
incoming heat flux). As it is now set to zero, the grey model
loops over the incoming rays to calculate Ir instead of relaying
on qin stored in radiativeIntensityRay.
- follows the principle of least surprise if the expansion behaviour
for #eval and expressions (eg, exprFixedValue) are the same. This
is possible now that we harness the regular stringOps::expand()
within exprString::expand()
Adding check for p.active at the end of KinematicParcel::move.
p.hitFace() is called only for active parcels.
Setting to zero the initialization for stored lists of stick and
escape parcels
in LocalInteraction and StandardWallInteraction models
NOTE: KinematicParcel::hitPatch counts overall system escaped
parcels and mass based on polyPatch type and not on type of
patchInteractionModel. Thus, if a patch is a Wall for fluid
but escape for parcel the overall report will be wrong but
the local report for each patch is correct
- the PDRsetFields utility processes a set of geometrical obstructions
to determine the equivalent blockage effects.
These fields are necessary inputs for PDRFoam calculations.
After setting up the geometries, the -dry-run option can be used to
generate a VTK file for diagnosis and post-processing purposes.
- this is an initial release, with improvements slated for the future.
NOTE
- the field results may be less than fully reliable when run in
single-precision. This howver does not represent a realistic
restriction since the prepared fields target a combustion
application which will invariably be double-precision.
- locate where the user is less tempted to change it (#1515).
It really should be considered an invariant environment variable.
STYLE: wmake -help information to stdout, die errors to stderr
