This fvModel applies a mass source to the continuity equation and to all
field equations, in a zero-dimensional case. Correction is made to
account for the mass that exits the domain due to expansion in space, so
that the model correctly applies a total mass flow rate. It is
implemented as a light wrapper around the massSource model.
Replacing volRegion removes unnecessary functionality duplication and ensures
cell set selection is consistent between functionObjects, fvModels and
fvConstraints for user convenience and reducing the code maintenance overhead.
Description
General cell set selection class for models that apply to sub-sets
of the mesh.
Currently supports cell selection from a set of points, a specified cellSet
or cellZone or all of the cells. The selection method can either be
specified explicitly using the \c select entry or inferred from the
presence of either a \c cellSet, \c cellZone or \c points entry. The \c
select entry is required to select \c all cells.
Usage
Examples:
\verbatim
// Apply everywhere
select all;
// Apply within a given cellSet
select cellSet; // Optional
cellSet rotor;
// Apply within a given cellZone
select cellZone; // Optional
cellZone rotor;
// Apply in cells containing a list of points
select points; // Optional
points
(
(2.25 0.5 0)
(2.75 0.5 0)
);
\endverbatim
The keyword 'select' is now used to specify the cell, face or point set
selection method consistently across all classes requiring this functionality.
'select' replaces the inconsistently named 'regionType' and 'selectionMode'
keywords used previously but backwards-compatibility is provided for user
convenience. All configuration files and tutorials have been updated.
Examples of 'select' from the tutorial cases:
functionObjects:
cellZoneAverage
{
type volFieldValue;
libs ("libfieldFunctionObjects.so");
writeControl writeTime;
writeInterval 1;
fields (p);
select cellZone;
cellZone injection;
operation volAverage;
writeFields false;
}
#includeFunc populationBalanceSizeDistribution
(
name=numberDensity,
populationBalance=aggregates,
select=cellZone,
cellZone=outlet,
functionType=numberDensity,
coordinateType=projectedAreaDiameter,
allCoordinates=yes,
normalise=yes,
logTransform=yes
)
fvModel:
cylinderHeat
{
type heatSource;
select all;
q 5e7;
}
fvConstraint:
momentumForce
{
type meanVelocityForce;
select all;
Ubar (0.1335 0 0);
}
Description
General cell set selection class for models that apply to sub-sets
of the mesh.
Currently supports cell selection from a set of points, a specified cellSet
or cellZone or all of the cells. The selection method can either be
specified explicitly using the \c selectionMode entry or inferred from the
presence of either a \c cellSet, \c cellZone or \c points entry. The \c
selectionMode entry is required to select \c all cells.
Usage
Examples:
\verbatim
// Apply everywhere
selectionMode all;
// Apply within a given cellSet
selectionMode cellSet; // Optional
cellSet rotor;
// Apply within a given cellZone
selectionMode cellZone; // Optional
cellSet rotor;
// Apply in cells containing a list of points
selectionMode points; // Optional
points
(
(2.25 0.5 0)
(2.75 0.5 0)
);
\endverbatim
Also used as the base-class for fvCellSet which additionally provides and
maintains the volume of the cell set.
