CFD Online Logo CFD Online URL
Home > Forums > General Forums > Main CFD Forum

Salted water through porous media

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Search this Thread Display Modes
Old   July 27, 2017, 11:04
Smile Salted water through porous media
New Member
Constance Fluent
Join Date: Jul 2017
Posts: 1
Rep Power: 0
Constance120 is on a distinguished road
Hi everyone,

I am currently modeling heat and mass transfer for a humid air flow through a membrane (a porous media). The aim is to put an inlet on the left side of the membrane with a humid air flow and on the right side ambient air. Normally, a part of the water from the humid air flow, which is at 340K evaporates, pass through the membrane and condensates on the other side.

To model it I used a mesh with three fluid volumes : one for the hot flow, one for the membrane and one for the ambient air.

But i am blocked for several issues :

1. It seems that it is impossible to model the humid air flow and in the same time the porous media. I use species transport with a mixture material to be able to change H20 and 02 fractions in boundaries conditions. However, when I use mixture for the inlet flow and to for the porous media, I can no initialize and I have the following message :

Species are not solved in neighbor cell threads (8 and 7) of interior zone 27.

Zone 27 is an interior type created after I added two new mesh interfaces for for the membrane and the volumes on each side.

And when I use only air in the three volumes, it works.

2. It seems that it is an issue on interfaces between the membrane and the other volumes. Do you think in any solution ?

3. I need to model this for a hot salted water stream, thus I have to use the mixture model

Thanks a lot !
Constance120 is offline   Reply With Quote


heat and mass transfer, mixture model, porous media flow, species model

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Thermal non-equilibrium porous media model with conjugate heat transfer Hexahedron FLUENT 9 February 22, 2023 02:55
Flow through two combined porous media with diffrent permeability Sandee Main CFD Forum 0 March 28, 2015 10:35
about porous media major FLUENT 5 March 6, 2013 10:00
combustion in porous media burner zuby ANSYS 0 July 27, 2009 02:26
Two phase flow in porous media Madhavi Krishnan FLUENT 3 June 6, 2005 05:52

All times are GMT -4. The time now is 18:36.