If you have already defined your local coordinate systems why not directly using them in the boundary specification?

No idea what you mean !nI want to know:nn' Axial componentnRadial ComponentnTheta ComponentnIs axial the velocity of the outer edge of the fan?nRadial should be 0nTheta is radians per second for the outer edge of the fan? 'nnandnn' Also what isninlet 1.1ninlet 1.2ninlet 1.3nis it:ninlet 1.1 = xninlet 1.2 = yninlet 1.3 = z 'nnEdit*nI can not find a single place on the internet that talks about those! n