Reply To: floating point exception

[Rob]

Oops, I was reading left to right.  In a transient case you're usually better off leaving the UR alone and dropping the time step. It's a bit dependent on what's driving an instability. Decreasing the UR tends to mean you'll need more iterations to reach the correct solution. 

As an aside, do NOT use brackets and other command characters ( " £ $ etc in filenames & paths. Fluent tends to react badly to these. It's something we always forget to mention as most of the staff are Unix/Linux trained or have been trained by those that are. The longer term users (I'm not old, yet...) don't use spaces either:  - or _ are fine.