# Reactive flow in porous media with volume expansion

 User Name Remember Me Password
 Register Blogs Members List Search Today's Posts Mark Forums Read

November 17, 2013, 04:16
Reactive flow in porous media with volume expansion
#1
Member

Mohsen
Join Date: Jul 2012
Posts: 40
Rep Power: 5
Hi,
I'm going to model gas flow in porous media. Gas reacts with porous solid and volume of porous solid increases. I want to solve the continuity equation for gas and porous solid, Darcy's momentum equation and energy equation. When I have not considered the volume expansion, I have used finite volume method with structure grid, but now, each cell of my grid has spacial volume at each time.
I have an equation for rate of volume expansion and I assumed the expansion occurs only in one dimension.
The attached figure shows may grid. Does anyone have any better idea for this problem?
Does anyone now the best way for discretization of equation on attached grid?
Attached Images
 Grid.jpg (15.9 KB, 14 views)

 November 27, 2013, 14:10 #2 New Member   misterdd Join Date: Dec 2012 Posts: 12 Rep Power: 4 try to solve your problem using immersed boundary condition (you may need to write a separate code for this).

 November 28, 2013, 07:20 #3 Member   Mohsen Join Date: Jul 2012 Posts: 40 Rep Power: 5 Hi misterdd, Thanks a lot for your replay, I'm going to study about immersed boundary condition.

December 5, 2013, 08:52
#4
Member

Join Date: Dec 2013
Posts: 53
Rep Power: 3
Hi
This is my first question.Iam simulating a flow over solids(squares).For this I created a domain(big rectangle) with solids squares inside.I have subtracted the square faces from the big rectangular face.I see the big surface getting distorted after I subtract one particular square face.I have easily subtracted all other faces. How to slove this?
Attached Files
 subtracting problem in gambit.docx (25.7 KB, 3 views)

 Thread Tools Display Modes Linear Mode

 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 OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post liguifan OpenFOAM Running, Solving & CFD 5 June 3, 2014 02:53 hsingtzu OpenFOAM Native Meshers: blockMesh 2 March 14, 2012 10:56 legendyxg FLUENT 9 April 21, 2009 22:24 cachen FLUENT 3 November 10, 2007 03:20 Wole CFX 7 August 30, 2001 20:32

All times are GMT -4. The time now is 05:52.

 Contact Us - CFD Online - Top