faceMomentum mode in twoPhaseEulerFoam fails
It seems that the faceMomentum option in twoPhaseEulerFoam which damps some numerical oscillations that occur in a fully collocated Eulerian multiphase approach fails on commit f3e10059. I imagine no commits since then have fixed this. The error occurs in both serial and parallel. The below error is reported:
 --> FOAM FATAL ERROR:  Operator + is undefined for oriented and unoriented types   From function Foam::orientedType Foam::operator+(const Foam::orientedType&, const Foam::orientedType&)  in file 
Steps to reproduce
This can be reproduced easily by going to any included tutorial for twoPhaseEulerFoam and adding the line "faceMomentum yes;" to the PIMPLE section of fvSolution.