Learning Forum

[Veronica]

Hello everyone, 

I would like to know how can I simulate a screen filter. I mean, do I have to make a surface without thickness with special characteristics or something like that?

Thank you for your help.

[Karthik R]

You can model the screen as a porous media and provide a certain porosity and resistance. You will need to model the thickness of the screen. However, you don't need to model the pore scale of the screen. This should help you get a filter model working. Perhaps, this along with DPM should give you a good starting point for your analysis.

Thanks.

Karthik

[Veronica]

Thank you for your answer. I would like to use "porous jump boundary conditions", so I undestand that it is in the case of a cell zone, so could I use a 3D model of the filter, I mean a cylinder with thickness that represent the filter?

 

 

[Karthik R]

Yes, you are right about this. You will need a 3D cylindrical domain if you are attempting to model the filter as a separate cell zone.

Thanks.

Karthik

[Veronica]

thank you for your help

[Veronica]

Hello, I have an extra questions. I have a 3D model for the screen filter, but I know that "porous jump" is a 1D condition, so will I have some problem?. And please can you help me with a example of use porous jump condition. I'm a little lost.

Best regards,

Veronica

[Karthik R]

Yes, you should be able to use the porous jump condition in a 3D model. One thing to note is that it only considers momentum resistance. It does not account for the diffusion process. Unfortunately, I don't have a ready-to-go example with me that explicitly shows the use of porous jump condition. I was able to find a few YouTube videos which explain how to use the porous jump condition. Please have a look at those, try to use it in your analysis, and let us know if you have any additional questions.

Also, please create a new post each time you have a different question. These new discussions will greatly benefit the community.

Thank you.

Karthik