Hi there,
I’m using openfoam-calculix adapters to simulate FSI problems. When I output data in calculix without appointing output frequency, everything goes fine, for example:
*NODE PRINT, NSET=probe
U
However, to avoid the data file being too large, I use frequency card, like;
*NODE PRINT, NSET=probe, FREQUENCY=1000
U
After this, the simulation diverse after running for a long time (about 1-2 hours). Is this a bug? How can I fix this?
Hi, I also use the FREQUENCY card, and I never encountered issues like the one you describe. It’s quite puzzling since generally the NODE PRINT output does not influence the calculation, right?
Sorry I can’t be of more help. Hope you find the source of the problem soon. 
Hi,
this is strange as the results output of CalculiX is independent of the adapter. Does this occur with other values of the FREQUENCY tag? Such as FREQUENCY= 10, 100 etc.?
Yes, it still breaks whatever frequency is given.