how can I fix these errors

I want to do an incrompessible simulation but I can’t start it because of this:

A large part of the flow region was defined for transient data export. This might negatively impact the performance of the simulation. Try to reduce the export region size, the “Write control” frequency or the “Fraction from end” in order to have optimal solver performance.

  1. A large part of the flow region was defined for statistical data export. This might negatively impact the performance of the simulation. Try to reduce the export region size, the “Write control” frequency or the “Fraction from end” in order to have optimal solver performance. How can I fix this?

Hi,

From the error message I’m assuming that this is PWC, so you probably have a large cartesian box or potentially many faces assigned in the additional result export > transient output. The message about statistical data export should be ok, as this does not require as much memory as the transient setting.

On a side note, I don’t think you will be able to run the analysis, because academic users do not have access to PWC/incompressible LBM.