[pkrishnakumar.er]

Hi,
I have to define a wire screen mesh in my analysis.
1. How to define a wire screen mesh as a porous jump zone in fluent.
2. How to find the values of alpha and C2 for my wire screen.

[LuckyTran]

In Fluent you would just go into the boundary conditions and change the type (most likely it will be interior) to porous jump.


It's more a meshing challenge. You have to mesh it such that there is a named boundary where you want the porous jump to be. Note that you should still have 1 cell zone in the mesh. I.e. try not to mesh two cell zones joined by walls because this would generate an interface. But even if you did mesh it this way, you could still merge the cell zones in Fluent.

[pkrishnakumar.er]

I tried to make a Mesh and I got the following questions / difficulties

1. The Fluid Zone is split by the wire screen. Do I have to create two different fluid Zones. (One Before the wire screen and after it).

2. When i tried to Model the wire screen and mesh it, I cannot maintain skewness. Because the thickness of wire screen mesh is 0.3 mm.

3. So in the boundary conditions i can get a interface instead interior. The interface couldn't made as porous Jump.

Thank you for spending your valuable time.
With regards
Krishna

[Dronzer]

Hi LuckTran and Krishnakumar,

I am currently working on similar problem which involves porous jump boundary. I completed meshing in ICEM and imported to Fluent and everything seems okay. My doubts are regarding the inputs for porous jump boundary.
I figured out all except the thermal contact resistance (m2-k/w). Can you please tell me how to get this?

Thanks in advance.