The implementation of the porousBafflePressure BC was incorrect in OpenFOAM-2.4
and earlier and corrected during the turbulence modeling rewrite for
OpenFOAM-3.0. This update introduced the density scaling required for the
definition of pressure in interFoam which requires the porosity coefficients to
be reduced.
Resolves bug-report https://bugs.openfoam.org/view.php?id=2890
6e14d1b5eb