Learning Forum

[CHIEH TING WANG]

Hi!

I tried to do grid independments and when I did the case have more elements the compare the other case in the same result time ，but the pressure was lower than the case have few grids.so is that mean two different cases has not the same analsys physical time?

[Rob]

Grid dependency is generally to look at the solution result, and as you increase the resolution you should reach a stable result against increased mesh.  Solution time is usually down to cpu availability and speed, but if the coarse mesh resulted in an unstable solution more cells could give a speed up. 

[CHIEH TING WANG]

thank you with your reply!

May I ask where can i see the solution result?

and does the cpu availability and speed mean the 'task manager' cpu effecieny? 

[Rob]

The solution result is in the data file (.dat.gz or .dat.h5 depending on version and/or preferences). If you look in the Fluent Parallel tab there are system metrics available. 

CPU usage should show up in the Task Manager. However, it's not always simple if you're writing files and/or low on RAM.