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#1 |
Member
Join Date: Jan 2018
Posts: 31
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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.) |
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#2 |
Senior Member
Alexander
Join Date: Apr 2013
Posts: 2,363
Rep Power: 34 ![]() ![]() |
by default fluent uses SI for units: meters, seconds, Kelvin, so on.
when you load mesh, you should scale it to be in meters.
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