Hello,

I tried to use parametric studies to determine the pressure drop over a valve for different mass flows. I expected that parametric studies need less computation time than doing the variants manually.

But I discovered two problems:

1. The computation time for each single scenario is similarly long as the computation time for the original project. Is this true?

2. If I have calculated the different scenarios, and afterwards want to look at a different result parameter (e.g. a velocity...), this newly selected result parameter does NOT appear before I recalculate all the scenarios, needing again the full computation time ! Is this normal, or am I doing something wrong?

Thanks

Hi Mar,

1) The computational time of the same model depends on the initial conditions and on the convergence criteria. Check that they are the same in your First Point of the Parametric Study. Each next point may take the previous result or not (default initial guess) depending on whether you have check the corresponding box.

2) You have to plan ahead which field variable will be of interest in your Study (Pressure, velocity, turbulent intensity, etc). Although all field variables will be computed in a Parametric Study only the selected filed variables will be output in a result file for post-processing. This saves space & time in writing./reading large result files.