Learning Forum

[Nawaf Rasheed]

Hey!

 

I've 3D multiphase model, my gemortrey is quater vapor chmaber. It has two cell zone condation: Solid and fluid (Vapor & liquid water). The next image is for my geometry.

Fluent auto generate the follwoing Boundary Condation. Unmarked boundary condation is created by me

It's worth to mention, contect_region-src and contect_region-trg almost dispaly same gemotry

And wall 17 & wall 18 & wall 6 shows nothing

I'm trying to understand why?

[Rob]

Have a look at nonconformal meshes. Ideally, go back to the geometry stage and resolve that. 

[Nawaf Rasheed]

How can I check the nonconformal?. Can you elaborate more, please?

[Rob]

You have a nonconformal interface, that's not ideal here so review "share topology" and fix it. 

[Nawaf Rasheed]

Thank you for your response

After working on my mesh and making topology 

Here is a result, all the boundary conditions is created by me. Except wall-part-vapor_chamber_fluid_v1.2-part-vapor_chamber_v1.3 and it's shadow

 

Here is a photo of wall-part-vapor_chamber_fluid_v1.2-part-vapor_chamber_v1.3:

Just one question here:

wall-part-vapor_chamber_fluid_v1.2-part-vapor_chamber_v1.3 is considered as interface boundary condition, right?

[Rob]

Those are walls, so the boundary between the fluid and solid. In Fluent an interface boundary condition is used for connecting surface meshes that don't match but are in the same location.  One of the wall & shadow pair will bound the fluid & solid, but I don't know which. Leave the "coupled" thermal condition on that boundary pair alone unless you understand the effect of changing it.