Learning Forum

[soloviev]

Hello,

I have made similar meshes previously and have not had this issue. I made a geometry with a bottom piece (solid) and two boxes above that (fluid) that I formed as one part. The two boxes above need to be separate since they are meshed separately, but I want them as one part so that they will be calculated in Fluent as the same body (all one fluid zone). I've done this before with no issue. I am doing this now, and at first there was a wall forming in between the two fluid zones. I deleted the 'mesh contact zone' between them and this wall was not generated when loading into Fluent, but now there are 'walls' forming that appear to be outside each of the components. I've attached images below of the tree of the geometry in meshing and then the walls created when loading the mesh into Fluent. I'm still not sure why they're being created since this hasn't happened before even when making meshes in the same way.

Thanks,

Alex

[Keyur Kanade]

Please create single part for all three bodies. Please define Named Selection for above two bodies as Fluid. Please use share topology. nPlease go through help manual for more details nnnRegards,nKeyurnHow to access Ansys Online Help DocumentnHow to show full resolution imagenGuidelines on the Student CommunitynHow to use Google to search within Ansys Student Communitynn

[soloviev]

Thank you Keyur,nI tried in both space claim and design modeler to ensure there was a single part for all three bodies and the topology was shared. When doing this, the 'mesh interfaces' create walls in between my fluid zones at that mesh contact region. I am unable to change this wall to an interface. Will this interfere with my calculations? nIf I delete the mesh contact in Meshing, it then creates the weird external walls I mentioned in the original post.nnThank you again for your assistance,nAlexn

[Keyur Kanade]

Please change type to interior. nRegards,nKeyurnHow to access Ansys Online Help DocumentnHow to show full resolution imagenGuidelines on the Student CommunitynHow to use Google to search within Ansys Student Communityn

[soloviev]

Thank you. I will look for a TUI command to change these walls to interior, since I don't see the option in the tree (see screenshot). nIf I cannot change to interior in Fluent, is there something I can do in either Spaceclaim/DM or meshing before loading into fluent that will allow them to be changed to type interior?.nThanks,nAlexn

[soloviev]

I've continued working on this domain and found using SpaceClaim that there were gaps between two parts of the domain. I have fixed most of them by re-cutting the upper body, but there are still 3 gaps. I read in the documentation to just pull the faces where the gaps are to meet the other faces, but I can't see this well in my domain. I've added a photo of the three faces where the gaps are. Is there a better way to do this than to pull them, or some auto tool to fix the gaps? If I force share topology will that fix them?.Thanks,nAlexnn

[Keyur Kanade]

This looks like geometry is created using convert to solid command. Did you import faceted data and created this geometry? nIf so, you need to use reverse engineering tools instead of covert to solid command. nnPlease go through help manual for more details nRegards,nKeyurnHow to access Ansys Online Help DocumentnHow to show full resolution imagenGuidelines on the Student CommunitynHow to use Google to search within Ansys Student Communityn

[soloviev]

Thank you! I used manual skin surface to skin to faceted body (see image). I still have a few gaps/missing faces that I haven't been able to fix. I can't seem to find a good way to edit the created surfaces to fix these issues manually. I used all of the automatic repair methods to fix as many issues as possible, but still have a few. nAny pointers would be helpful!nAlexnn

[soloviev]

I actually resolved the issue by making one skin over the entire top part of the faceted body. But I loaded the new mesh into fluent and got a weird 'outer' wall body for the bottom solid body (see photo). Will this interfere with the model run? it seems the interior walls between fluid bodies has been resolved using your previous recommendations.Thanks,nAlexn

[Keyur Kanade]

Can you create a new discussion for this new issue.