Patch provided by Juho Peltola

Provides run-time selection of buoyancy sources for compressible solvers

Replaces the built-in buoyancy sources in XiFoam, reactingFoam and
rhoReactingFoam.

e.g. in constant/fvOptions specify

momentumSource
{
    type            buoyancyForce;

    buoyancyForceCoeffs
    {
        fieldNames      (U);
    }
}

and optionally specify the buoyancy energy source in the enthalpy
equation:

energySource
{
    type            buoyancyEnergy;

    buoyancyEnergyCoeffs
    {
        fieldNames      (h);
    }
}

or internal energy equation

energySource
{
    type            buoyancyEnergy;

    buoyancyEnergyCoeffs
    {
        fieldNames      (e);
    }
}

Patch provided by Daniel Jasinski
Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1893

Simplifies lookup of RAS or LES models

Pressure relaxation is useful with LTS to damp acoustic waves

Patches provided by Juho Peltola

reactingEulerFoam/interfacialModels/wallDampingModels: Added interpolatedWallDamping abstract base-class
To simplify linear, sine and cosine wall-damping implementation

New lift model supporting near-wall damping using the new
wallDampingModels.

e.g.

lift
(
    (air in water)
    {
        type            wallDamped;
        lift
        {
            type            constantCoefficient;
            Cl              0.5;
        }
        wallDamping
        {
            type            linear;
            Cd              0.5;
        }
    }
);

in which a linear near-wall damping function min(y/(Cd*d), 1) is applied to the constant
coefficient lift model.  Additional wall-damping functions will be added.

to allow iteration over the energy equations to improve stability for phase-change.
Additionally if nEnergyCorrectors is set to 0 the energy equations are
not solved which may be beneficial during the startup of some cases.

Avoids the clutter and maintenance effort associated with providing the
function signature string.

Now solvers return solver performance information for all components
with backward compatibility provided by the "max" function which created
the scalar solverPerformance from the maximum component residuals from
the SolverPerformance<Type>.

The residuals functionObject has been upgraded to support
SolverPerformance<Type> so that now the initial residuals for all
(valid) components are tabulated, e.g. for the cavity tutorial case the
residuals for p, Ux and Uy are listed vs time.

Currently the residualControl option of pimpleControl and simpleControl
is supported in backward compatibility mode (only the maximum component
residual is considered) but in the future this will be upgraded to
support convergence control for the components individually.

This development started from patches provided by Bruno Santos, See
http://www.openfoam.org/mantisbt/view.php?id=1824

to support phase volume fraction changes due to pressure

Resolves bug-report http://openfoam.org/mantisbt/view.php?id=1899

The new NotImplemented macro uses __PRETTY_FUNCTION__ for GNU compatible
compilers otherwise __func__ to provide the function name string.

buoyantBoussinesqSimpleFoam: Add support for radiative heat-transfer consistent with buoyantBoussinesqPimpleFoam
Patch provided by Daniel Jasinski: http://www.openfoam.org/mantisbt/view.php?id=1856

Provided by Juho Peltola

reactingEulerFoam: Updated handling of thermal diffusivity to support Prandtl number and thermal wall-functions

Ur can be generated using a functionObject or in the post-processor

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1868

to use the transport matrix construction in MovingPhaseModel

Now consistent with constructors.

between incompressible and compressible phases

Now combinations of incompressible, compressible phases with or without
mass-transfer are supported efficiently.

This file contains definitions rather than declarations

This makes looping over the phases much simpler which maintaining
support for phase-name lookup.