Learning Forum

[ManuelSoler]

Hello,

I am having issues when dealing with porous jumps across a radiator in a duct. My issue is that I am not able to select my radiator and fan faces as an internal boundary condition. I have tried the following:

-Create an enclosure through DM with both the duct and the radiator (naming the face "radiator") and volume meshing all

-Create an enclosure of the duct and deal with the radiator as a fluid (naming the face "radiator") and volume meshing separately my radiator and enclosure

-Create an enclosure of the duct and transforming the radiator to surfaces and volume meshing separately radiator and enclosure

See attached images.

Thanks for your help

[RK]

Hello, nThis can be done in Fluent meshing while selecting boundaries. It is easier while using the water tight workflow. In the boundaries tab, just choose the fluid domain to internal. n

[ManuelSoler]

Thanks Rahkumar.nUsing the watertight workflow usually ends with free faces on my mesh due to the complex geometry. Regarding the fluid domain to change into internal, are you referring to the enclosure or to my component?nAlso, I would appreciate on which of the geometry methods I attempted would work bettern

[ManuelSoler]

Hello, This can be done in Fluent meshing while selecting boundaries. It is easier while using the water tight workflow. In the boundaries tab, just choose the fluid domain to internal./forum/discussion/comment/101041#Comment_101041

Thanks Rahkumar.nUsing the watertight workflow usually ends unsuccessfully when generating my surface mesh due to the complex geometry, do you know how to solve this issue?. Adding to it, I used the same local sizing which worked (after exporting the sizefield and re-importing the geometry with a surface mesh). nIs there a way to achieve the same without using the workflow?nAlso, I would appreciate on which of the geometry methods I attempted would work better as I have tried different combinations using designmodeler and spaceclaimn

[ManuelSoler]

hello,nI finally was able to solve my issue, if any of you are struggling with the same send me a message.n

[Karthik Remella]

Glad that you were able to resolve it. If you could post the fix, it will help the members on the forum.nThank you.nKarthikn

[ManuelSoler]

In order for fluent to detect it, create the enclosure of all components and make sure they are seaparated from the duct walls, otherwise it would be detected as a walln