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-   -   Multiple cell zones in FLUENT (http://www.cfd-online.com/Forums/fluent/92285-multiple-cell-zones-fluent.html)

bluemonkee September 8, 2011 18:55

Multiple cell zones in FLUENT
 
I am trying to create multiple cell zones so that I can have different porosity in each zone. This is a 2-D asymmetric model, and I generated the mesh using Ansys's Design Modeler and Meshing tools. Right now, I can get several zones, but FLUENT is requiring that the lines between each zone has its own boundary condition (FLUENT has assigned all of these lines names that begin with "surface_"). Is there a way to remove the surfaces from the model in FLUENT? Or is there a better way to use the ANSYS tools to create a multiregion model?

Thanks for your help!

rohit.mukare7 November 1, 2011 10:57

hi i am also facing the same problem.plz let me knw if u could solve that..

CFD_rocks November 3, 2011 11:38

I am also having the same problem, any one got an idea?!

swetkyz November 5, 2011 10:29

If I understand correctly, you are just trying to get all of the zones to behave as one continuous fluid domain. Ideally, you would want to generate a conformal mesh, which you can do by making all of your zones one 'part' in Design Modeler. You can do this by selecting them and right clicking then selecting "form new part".

To connect the fluids at the interfaces, you need to merge the two surfaces at each interface (between fluid zones). To do this go to 'Mesh Interfaces' under 'Problem Setup' in the menu bar on the left. It is fairly straightforward from there.

Hopefully this helps.

-Zachariah

CFD_rocks November 8, 2011 07:24

Thanks, it did help a lot!

sumanth_0811 January 20, 2013 05:11

How to go about it?
 
Can anyone help me with the creation of multiple zones during meshing?
Is there a tutorial for that?

fn1743 March 5, 2013 01:25

how do i draw a 2D block capable of being split into two zones? I need to create a free surface in a tank.

thanks

Volumeoffluid November 13, 2013 07:23

Quote:

Originally Posted by swetkyz (Post 330831)
If I understand correctly, you are just trying to get all of the zones to behave as one continuous fluid domain. Ideally, you would want to generate a conformal mesh, which you can do by making all of your zones one 'part' in Design Modeler. You can do this by selecting them and right clicking then selecting "form new part".

To connect the fluids at the interfaces, you need to merge the two surfaces at each interface (between fluid zones). To do this go to 'Mesh Interfaces' under 'Problem Setup' in the menu bar on the left. It is fairly straightforward from there.

Hopefully this helps.

-Zachariah

Hi Zachariah,
so i did exactly what you say, but what i should define this line between two fluids??as interface??or as moving wall?
Thank you in advance!


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