[UchihaMadara]

I wanted to ask about the units of the UDF macros.
Lets say I am dealing with

NV_mag(area), F_P(f,t) and F_Flux(f,t)


will their units be in m2, N/m2 and kg/s or something else? respectively?


(I ask this becuase I observed that I have build my CAD in mm, that means when I switch from fluent meshing to fluent solver I do a scale 0.001 0.001 0.001 command and then change the units with

/define units length mm so that I could place surfaces and lines easily.



And this has confused my two DEFINE_PROFILE methods in giving results in order of -16 and -10 for mass flow rates and reynolds respectively.)

[AlexanderZ]

by default fluent uses SI for units: meters, seconds, Kelvin, so on.

when you load mesh, you should scale it to be in meters.