postProcess -func MachNo

previously generated the warning

Executing functionObjects
--> FOAM Warning :     functionObjects::MachNo MachNo cannot find required field U

which is incorrect; the field 'U' is available but the
thermophysicalProperties is not.  Now 'postProcess' generates the
warning:

Executing functionObjects
--> FOAM Warning :     functionObjects::MachNo MachNo cannot find required object thermophysicalProperties of type fluidThermo
--> FOAM Warning :     functionObjects::MachNo MachNo failed to execute.

Resolves bug-report http://bugs.openfoam.org/view.php?id=2352

in which the reactions are enabled only in the specified list of
cellZones.  e.g. in constant/combustionProperties

combustionModel zoneCombustion<psiChemistryCombustion>;

active  true;

zoneCombustionCoeffs
{
    zones (catalyst);
}

and in constant/zoneCombustionProperties

combustionModel laminar<psiChemistryCombustion>;

active  true;

laminarCoeffs
{}

Resolves bug-report http://bugs.openfoam.org/view.php?id=2350

Declaration of 'explicit' constructor without a single argument are redundant.

    Corrected form of the Rosin-Rammler distribution taking into account the
    varying number of particels per parces for for fixed-mass parcels.  This
    distribution should be used when
    \verbatim
        parcelBasisType mass;
    \endverbatim

    See equation 10 in reference:
    \verbatim
        Yoon, S. S., Hewson, J. C., DesJardin, P. E., Glaze, D. J.,
        Black, A. R., & Skaggs, R. R. (2004).
        Numerical modeling and experimental measurements of a high speed
        solid-cone water spray for use in fire suppression applications.
        International Journal of Multiphase Flow, 30(11), 1369-1388.
    \endverbatim

    The operation can be applied to any volume or surface fields generating a
    volume or surface scalar field.

    Example of function object specification:
    \verbatim
    Ttot
    {
        type            add;
        libs            ("libfieldFunctionObjects.so");
        fields          (T Tdelta);
        result          Ttot;
        executeControl  writeTime;
        writeControl    writeTime;
    }
    \endverbatim

Also refactored functionObjects::fieldsExpression to avoid code
duplication between the 'add' and 'subtract' functionObjects.

    The operation can be applied to any volume or surface fields generating a
    volume or surface scalar field.

    Example of function object specification:
    \verbatim
    Tdiff
    {
        type            subtract;
        libs            ("libfieldFunctionObjects.so");
        fields          (T Tmean);
        result          Tdiff;
        executeControl  writeTime;
        writeControl    writeTime;
    }
    \endverbatim

Patch contributed by Timo Niemi, VTT.
Resolved bug-report http://bugs.openfoam.org/view.php?id=2286

viscosityModels::strainRateFunction: New run-time selected strain-rate function non-Newtonian viscosity model

Uses 'Function1' to provide support for an extensible range of run-time
selected functions including interpolation of tabulated data etc.

Resolves bug-report http://bugs.openfoam.org/view.php?id=2333

and other incompressible mixture-based multiphase solvers.

The spherical part of the Reynolds stress is included in the pressure so
that the wall boundary condition for the pressure is zeroGradient.

Resolves bug-report http://bugs.openfoam.org/view.php?id=2325

when Allwmake is called from wmake -all

Avoids a lot of unnecessary clutter in the compilation log.

Changed 'ld' line to include path of target library or executable.

'set -x' should be used for debugging.

Added command printing into wmake and Allwmake as a replacement for
'set -x' to log current target.

Based on patch contributed by Alexey Matveichev
Resolves feature request http://bugs.openfoam.org/view.php?id=2328

Based on patch contributed by Alexey Matveichev
Resolves feature-request http://bugs.openfoam.org/view.php?id=2330

The base-class provides the point for single-precision.

The 'Refresh' button updates the blockMesh and the GUI.

Patch contributed by Mattijs Janssens