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comsol version used in the last run
Posted 15 mai 2021, 02:38 UTC−4 General, Computational Fluid Dynamics (CFD), Studies & Solvers 0 Replies
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Hi:
I hope everyone is safe as we go through this pandemic.
Is it possible to know exactly which build of comsol 5.4.0.xxx or 5.5.0.xxx was used in the last computation in a comsol file? From the log file, the date stamp is Jan 09, 2020. So, it is definitely some build of 5.4.0.xxx or 5.5.0.xxx (which were released prior to Jan 09, 2020). Versions previous to 5.4 was not used as we got the license starting from 5.4.
The results does change with running the same file in different versions, because of different performance improvements (both in meshing and solver strategies) with differen comsol releases. Thus, to recreate the same results using the same file it is necessary to use the same version (build), as the solvers takes different time steps and the log history is not matching. This ultimately leads to a different solution. The problem is about a two phase fluid instability problem, which is known to be sensitive to meshing and solver sequence / timesteps.
I have tried to use 5.4.0.295, 5.4.0.388 and 5.5.0.292 but the log history is not matching as the timesteps gets deviated in between steps 51 to 65.
Any help in finding out which exact comsol version is used in the last run of the model would be helpful.
P.S. It has to be some version of 5.4.0.225 / 5.4.0.246 / 5.4.0.346 / 5.5.0.306 / 5.5.0.352
Hello Sourav Mondal
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