CERN Accelerating science

Are there updates about this issue? this would be very interesting indeed!

Probably a logfile that can be edited and reloaded could also work? Thanks

You can kind of achieve this, but not directly. The description below assumes that you know the use of the time-dependent mode:

Instead of running distinct simulations, you can run one with time-dependence. For the parameter(s) to vary (currently sticking factor, outgassing and opacity are supported), you use the Parameter Editor to set up the values you'd need to sweep through, and keep them constant during a long enough time so the system can reach steady state. An example is below, to sweep the sticking factor from 0 to 1 through steps of 0.2.

First the parameter 'sweep' is assigned to the two end facets:

Then the parameter is defined, through 0.5 seconds for each value, sufficient to reach steady state:

Then you define that you'd like to collect hits at the steady state part, between 0.3 and 0.5 seconds (for sticking .1), then between 0.8 and 1 seconds (for sticking .2), this is achieved by sampling 0.4s, 0.9s, ... with a time window of dt=0.2s, as below:

(Don't forget to disable "Calculate constant flow")

Then you can run the simulation in one go. To extract results you can use the Time/Time settings command to sweep through the calculated moments, or even Time-dependent tools like the Time/Pressure Evolution window to get all values at once for facets with a profile:

Attaching Molflow file:

parameter_sweep.zip