Velocity Cell Macros in 2D Axisymmetric Swirl

c_023 · February 14, 2020, 07:16

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!

vinerm · February 14, 2020, 10:37

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.

February 14, 2020, 07:16	Velocity Cell Macros in 2D Axisymmetric Swirl	#1
c_023 New Member Join Date: Dec 2019 Posts: 19 Rep Power: 6	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!

February 14, 2020, 10:37	Sigsegv	#2
vinerm Senior Member Vinerm Join Date: Jun 2009 Location: Nederland Posts: 2,946 Blog Entries: 1 Rep Power: 35	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. c_023 likes this. __________________ Regards, Vinerm PM to be used if and only if you do not want something to be shared publicly. PM is considered to be of the least priority.

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