Velocity Cell Macros in 2D Axisymmetric Swirl
 

Does anyone know how the velocity components can be accessed with a macro in 2D axisymmetric swirl? The UDF manual does not differ between 3D and 2D axisymmetric and only provides C_U(c,t), C_V(c,t), C_W(c,t). Are there specific macros for accessing Velocity components in axisymmetric and axisymmetric swirl domain?
I have a UDF that is using Velocity components to compute a source term, the UDF works well in 3D but is causing a SIGSEGV during the first Iteration in 2D axisymmetric swirl, which I believe stems from the UDF trying to Access a velocity component that is not existing.
Does anyone know what macros can be used in such a case?

Thanks in Advance and Kind regards!

Sigsegv
 

C_W exists for a case with 2D axisymmetric swirl. Check your code; it's possible that the error is due to some other reason.