Learning Forum

[Jakob Pfeifer]

Hello everyone,

I am currently carrying out a student project where I have to conduct simulations of drone propellers. I have already carried out a couple simulations but am now facing a problem. Suddenly, my named selections do not show up any more when I want to assign boundaries. The labels exist and were already used for the local sizing just before. This worked perfectly fine for the past month but now this has happened quite frequently for the last few simulations. The previous times it could be fixed by shutting Meshing down in the task manager and restarting it but this time it is holding me up for over an hour already and won't resolve. 

Has anyone had this problem as well or knows a solution to this? As I have mentioned, the named sections exist and work for the other tasks. Thanks in advance! 

Kind regards, Jakob

[Jakob Pfeifer]

Update: After restarting and remeshing the model for countless times (without any changes), the labels suddenly appeared in the "update bundaries" task. Still, I think this shouldn't be like that.

[Federico]

Hello Jakob,

sorry that you are having these issues, it does seem odd that restarting Fluent sometimes fixes the issue.

Next time you see this, can you try changing the Selection type to Zone to see if it shows anything? Then reverting back to Label, do they reappear?

[Jakob Pfeifer]

Hello,

I have tried that already a couple of times, this doesn't make any difference... After the labels appeared and I finished the meshing, I tried it once again. The labels where gone again :(