Body
Hi,
I have been able to reproduce an issue where if I upload a SYN file to Molflow to set the desorption rates for facets, and then change the desorption rates to zero of some of these facets and others they will snap back to the imported rate. In other words the facets seem to have a "memory" of the imported state and will tend to switch back to that rate.
I have been working around this by starting from scratch on Molflow models whenever I want to change which facets are driven by Synrad data. But if you are getting high pressures in a region you think you have turned off PSD I'd recommend double checking outgassing rates to make sure they are doing what you want them to.
Tom
6 years ago
- Log in to post comments
- Log in to post comments
Hello Tom,
Sorry for the delay, I wanted to include screenshots in my reply but I was out of office.
It is indeed possible that there is a bug, but could you check one last thing (as for the moment I can't reproduce it)?
You say that "then change the desorption rates to zero of some of these facets and others"...
I'm asking these because outgassing for these facets are controlled at two different locations (which I admit is a bit confusing but space was too precious in the facet parameter panel):
This above is the general outgassing control - note that in this case the numbers are greyed out as dynamic outgassing defines the outgassing rate.
If you select a mixture of facets with and without dynamic outgassing, the textfields might become editable.
This is the Dynamic desorption panel of the advanced facet parameters.
The expected behavior is:
Having described the expected behavior, does Molflow behave differently (which confirms that it's a bug)? Let me know, maybe even attach a simple example (a small part of the geometry is sufficient if you're working on sg confidential) and I'll investigate.
Thanks for your feedback!