I got the following weired error message
The model with 2,407,634 fluid cells has been run yesterday. It was too slow and I changed mesh setting and modified some boundary data only. Re-run was shut down with above message.
Could somebody help this? my version is 2013.
Thanks
Hannah
can you post a picture of the model? you've got 2million fluid cells and 4.5 million partial cells. this is a huge CFD solution. do you have the computing power to solve it? have you simplified it down to somethign reasonable to get started?
Thank you, Jared. I realized the mech size, but it was run, but cannot be run again with reduced mech cell number. My model image i posted here.
the min. gap I set is 0.1". vs model overall dim.: 24"X48"X5.7". In addition, my machine spec.: 32GB Ram, 3.40GHz. Win7, 64 bit . Normally how many cell could be handled?
Thank you in advance for your comment.
Hannah
what are the mesh settings that you are using? global only or local as well?
when you click on the button to look at the manual settings, what are the parameters that are selected. a couple ways to output this quickly would be to use screenshots or try the report function with the results loaded. (after mesh)
i don't know the conditions of the study but one way to reduce the number of cells would be to make the cells longer in the long direction of your model. but the physics of your problem will decide whether that is valid or not.
to start, i wouldn't be trying to solve this with more than 100k cells.
Finally I setup this model with 861553 fluid cells and 504508 partial cells. The solver is running now. The discharge opening extended 12" for avoiding waring message attached. I am wondering how the fluid cell is less than the model without extended D/A (see attached new geom). In these two cases, no other settings are changed only except geometry model became larger actually.
Thanks for comments
hannah, if you want to send me the models at jared@hawkridgesys.com, i can take a look.
but what you will want to take a look at is the manual mesh settings behind the automatic ones. they likely changed because of the model change. when you choose automatic settings, the software uses many characteristics to set them, with your model change, there are different characteristics which may change the mesh settings.
I am waiting for the solver converged with above cells and setting. The mesh setting now is automatic with 0 refinement and 5 result resolution level for this run. So far it is no any waring out. But the goal monitor shows results are much different with we are expecting.
After this, I plan to add refinement to increase cell #, but not sure if it works. I could send you my model today. By the way, Peter has called me and is sending me some info. regarding your training materials. Thank you both.
hi hannah, send me an email and i'll send you some details on how to send me the file. if you send a step, the flow sim setup won't be included.
Thank u, Jared. Just email me to the address: fengdong.zhang@engineeredair.com you have in your PC.
