Learning Forum

[cherlene]

Hi, guys.

I met a problem when I was about to make the mesh. I want to build a 3D room where has some devices.

But in the create regions step, it always shows error: found overlapping faces sharing edge. I dont know how to slove that.

Thank you in advance

[Rob]

Did you do share topology in SpaceClaim? It's possible you have duplicate faces which won't be handled in the Watertight Workflow.

[cherlene]

No, I havent. I met this problem several time. I dont know how to share topolopy.
When I clicked this, it shows there is no objects to share.

[Rob]

Why are you modelling the walls like that? We just need the fluid region. Please can you show the component list?

[cherlene]

I am a Fluent beginner. I just follow the video to model a room.
This is a room, the ceilling has nine air supplyers, and in four walls there are four air exhaust vents. In this room, there is a medium box, on the top of the medium box there is an exhaust chamber which **** air outside the room, and a conveyor belt pass thought medium box, and two small openings beyond conveyor little bit which allow air go inside the medium box. In the meduim box, there is a box whose bottom generates harmful gas. At first, I used Desgin modeler to model this room, but I still have problem with Fluent meshing, so I changed to Solidworks, that's why my walls like this, since I followed online video.
Thank you in advance, I have been stuck on this issue for many days, totally have no idea how to solve the problem.

[Rob]

Please show the tree, and also check you have a CAD volume for the main fluid region. A common error is to build the solid bits that we don't need and not build the volumes where the fluid will be.

[cherlene]

Hi, Rob
The structure tree is like this. Yeah, I understand that the fluid is the important part. but can I only build the solid bits and using fluent meshing cap function and choose the geometry only has the solid? I thought that after capping, the fluid is the space that enclosed by the solid bits.

[cherlene]

[Rob]

Sort of, but if you read in the solids and have overlaps it gets messy. Go back to geometry and build a "solid" that is the fluid region. The naming convention in CAD is such that a volume is a "solid" but in Fluent we don't follow that convention as we have "fluid" and "solid" depending on what we're doing.