Porous Media

anon_m · November 11, 2013, 12:45

Hello,

I am trying to model the flow from a tube towards a porous media. I define two parts in geometry, and create a named selection in mesh section for the interface between the bodies. In Fluent I also define a mesh interface. I set up the variables and what I get as a result is that the flow doesn't go much further after the interface as it acts as a huge block in the flow. I am not sure what I am doing wrong.

I appreciate your help.

-mAx- · November 13, 2013, 01:38

you don't need to define interfaces.
Interfaces in the sense of Fluent are usefull for glueing 2 meshes which are not connected. (and not an interface between 2 phases)
So you need to reconnect both domain, and you also need to assign 2 different continuum (1 fluid and 1 porous)

anon_m · November 13, 2013, 08:24

Thanks.

But how can I reconnect the domains? I am developing the model is ANSYS model designer, and defining two body parts there. I think I need to have 2 lines for the boundary b/w fluid and porous to make separate parts. When I go to Fluent these lines are set to wall B.C.

-mAx- · November 13, 2013, 08:29

Quote:

Originally Posted by GK-mech

I am developing the model is ANSYS model designer

I have 0-experience with Ansys. I only explained what you should do in Gambit for Fluent

anon_m · November 13, 2013, 08:34

probably there should be a similar way to do what you said, I'll try to reconnect the zones then.

I appreciate your help

)

November 11, 2013, 12:45	Porous Media	#1
anon_m Disabled Join Date: Nov 2013 Posts: 16 Rep Power: 13	Hello, I am trying to model the flow from a tube towards a porous media. I define two parts in geometry, and create a named selection in mesh section for the interface between the bodies. In Fluent I also define a mesh interface. I set up the variables and what I get as a result is that the flow doesn't go much further after the interface as it acts as a huge block in the flow. I am not sure what I am doing wrong. I appreciate your help.

November 13, 2013, 01:38		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	you don't need to define interfaces. Interfaces in the sense of Fluent are usefull for glueing 2 meshes which are not connected. (and not an interface between 2 phases) So you need to reconnect both domain, and you also need to assign 2 different continuum (1 fluid and 1 porous) __________________ In memory of my friend Hervé: CFD engineer & freerider

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November 13, 2013, 08:24		#3
anon_m Disabled Join Date: Nov 2013 Posts: 16 Rep Power: 13	Thanks. But how can I reconnect the domains? I am developing the model is ANSYS model designer, and defining two body parts there. I think I need to have 2 lines for the boundary b/w fluid and porous to make separate parts. When I go to Fluent these lines are set to wall B.C.

November 13, 2013, 08:34		#5
anon_m Disabled Join Date: Nov 2013 Posts: 16 Rep Power: 13	probably there should be a similar way to do what you said, I'll try to reconnect the zones then. I appreciate your help )