Hi, would like to know if there are any options in pro-am for meshing both internal and external fluid domains at the same time?? Also, how can i switch meshing between internal and external domains?? Thanks in advance.

As far as I know there is no such option. Switching is done by orientation of the boundary shells.

Regards.

Thanks...but can you tell me how to orient the boundary shells ?? what did you actually mean by this?? Regards.

Do you have a bounding box for external domain? If not - make it first. Then under "Prepare surfaces" you'll be able to run an orientation check and fix the orientation - ProAM will automatically recognise that you'll have a doubly-connected region.

cori cset to orient shells To switch between internal and external meshing, use the Flipped Shell Orientation check box in advanced options of pro-am

Thanks....however had another question. Initially, how will i know whether Pro-Am will mesh the internal or external domain?? Regards.

after "cori cset", look at the plot with "plfa on"...I think by default pro-am is meshing the red side with positive shell normal

Er...

It is much easier to do this type of meshing in ccm+. I'm not sure, but I don't think you can use polyhedra cells for this type of meshing in proam, only tets with prism layers. Trust me use ccm+ if you can!

regards

allan

Mac,

I Recomend you to select which mesh are you going to create first (e.g. internal mesh). Then select all surfaces bounding your internal volume by puting all of them in CSET. Then make a CSET INVERT then CDEL CSET. Mesh your volume with Pro-Am then using export grid in star-cd .cel and .vrt

Then do a resume model and then do the exact same thing only this time its for the external mesh. After you finish creating the external mesh, make an import grid of your internal mesh. finally do a Vertex merge.

If you do have any baffle or interfaces connecting both sides you are likely to get unmatched vertices due to resurfacing step in Pro-Am, you might just have to couple both unmatched two volumes.

I hope this trick will help..

Reza