FLUENT 6.2 - tip to avoid large jumps in residuals when restarting a calculation with grid interfaces from saved data


While restarting a parallel calculation that involves grid interfaces after reading a saved data file, the residuals may jump up significantly and even cause the calculation to diverge in FLUENT 6.2. This solution provides a tip to overcome this issue.

In FLUENT 6.2, if the case involves grid interfaces, the case and data files need to be always read in together into the parallel solver. This is because of labeling of faces done during reading of data files. This limitation will be resolved in FLUENT 6.3.





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