Hello,
I am currently running Simulation CFD 2014 build 20130301, and having trouble with repeated software crashes. These crashes are typically in response to user interface action, such as clicking right clicking a tree branch in the design study bar. Most recently I am having consistent crashes when attempting to save a study after changing properties in a local material (changed a heat exchanger flow method from constant to fan curve). This crash has made this study essentially unusable, so I started from scratch. The new study continues to crash when I attempt to save after setting the heat exchanger material to the version saved in My Materials, which has a fan curve. Any ideas or suggested work arounds would be most appreciated.
Thanks!
Solved! Go to Solution.
Solved by tong6. Go to Solution.
hi,
I saw there are crash reports on our server with user email address PHCLARK@********.COM. I assume this is yours? Based on the crash information there,I can see the heat exchanger fancurve type has an unit convertion issue. Seems there is a bug writing fancurve variant data to My materials. Any way you avoid using local material or my materials?
Hello,
Thanks for your response. Those are my crash logs, yes. That bug description is consistent with what I'm seeing. I've tried using a standard internal fans, which in theory provide the physical behavior I need for this simulation, however the results summary doesn't include inlet and outlet conditions on the fans (like heat exchangers), which is a necessary result. I've had some success with a constant flow, howver this is not phyically realistic (results in severe fan inlet/outlet mass imbalance). Is there a workaround?
P.S. I can't use wall calculator to find internal fan inlet/out results, because I need to evalauate inlet and outlet moist air enthalpy, which is only available as a summary field.
Thanks for your help,
Phil
I was able to get the fan curve based heat exchangers to work and save without crashing by inputting the curve in default units. It looks like your idea of a bug in the unit conversion was correct.
Thanks for your help
Thank you for your post. When coupled with your submitted Crash Error Reports, the development team will be able to make a difference in the future. Thank you for these details, it really makes a difference.