CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   CFX (http://www.cfd-online.com/Forums/cfx/)
-   -   Oxygen mass transfer (http://www.cfd-online.com/Forums/cfx/72556-oxygen-mass-transfer.html)

lcea February 10, 2010 03:36

Oxygen mass transfer
 
Hello,

I am trying to model the mixing of oxygen and water in a mixing vessel. I am considering 2 phases and 3 components. The liquid phase is a mixture of water and dissolved oxygen, and the gas phase is pure oxygen. I would like to include the mass transfer from pure oxygen (gas phase) to dissolved oxygen (liquid phase), but cannot find any tutorial which indicates how to do this. The tutorials I have related to mixing vessels do not consider the mass transfer between the gas and liquid phases.
Can anyone help with this or give any hint?

many thanks,
Luis

ghorrocks February 10, 2010 05:27

You will need to contact CFX support for examples of advanced simulations like this.

Idtisak February 10, 2010 07:36

Quote:

Originally Posted by lcea (Post 245557)
Hello,

I am trying to model the mixing of oxygen and water in a mixing vessel. I am considering 2 phases and 3 components. The liquid phase is a mixture of water and dissolved oxygen, and the gas phase is pure oxygen. I would like to include the mass transfer from pure oxygen (gas phase) to dissolved oxygen (liquid phase), but cannot find any tutorial which indicates how to do this. The tutorials I have related to mixing vessels do not consider the mass transfer between the gas and liquid phases.
Can anyone help with this or give any hint?

many thanks,
Luis

I am using CFX v.11. For the quick suggestion, you can define each phase with its components like O2 in air then O2l in liquid phase and you can link these 2 components with Henry's law. All can be done in CFX v. 11 but it will consume lot of time to simulate. Now I consider only O2 but I need to run it on a cluster so you need to consider about your computer capacity as well.

lcea February 10, 2010 10:54

Many thanks for your help.


All times are GMT -4. The time now is 09:52.