mpnc: forgot to add default for the PressureFormulation.

git-svn-id: svn://svn.iws.uni-stuttgart.de/DUMUX/dumux/trunk@9888 2fb0f335-1f38-0410-981e-8018bf24f1b0

dumux/implicit/mpnc/mpncpropertydefaults.hh

@@ -234,6 +234,11 @@ SET_PROP(MPNC, FluidState){
         typedef Dumux::CompositionalFluidState<Scalar, FluidSystem> type;
 };
 
+//! Set the default pressure formulation to the pressure of the (most) wetting phase
+SET_INT_PROP(MPNC,
+             PressureFormulation,
+             MpNcPressureFormulation::mostWettingFirst);
+
 //! default value for the forchheimer coefficient
 // Source: Ward, J.C. 1964 Turbulent flow in porous media. ASCE J. Hydraul. Div 90.
 //        Actually the Forchheimer coefficient is also a function of the dimensions of the