CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

porous medium and reactions

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   July 19, 2008, 17:22
Default porous medium and reactions
  #1
Valeria
Guest
 
Posts: n/a
Dear users: I am simulating "Flow and Heat Transfer in a fixed bed reactor Catalytic. Enters the catalytic reactor a gas stream. I intend to model chemical species transport and chemical reaction (Endothermic, exothermic and reversible), which are as follows: CH4 + H2O<--->CO + 3H2 CO + H2O<---->CO2 + H2 The idea is to use the model of porous medium for the area was packed and behave as a catalyst for such reactions. My questions are as follows: - What considerations should I specify to ensure that the porous medium acting as a catalyst for the reactions involved in the problem? - What model must be activated so that the reactions occurring in the porous medium: volumetric reaction, reaction on the surface of the wall? -Is it necessary to define areas or sites where chemical reactions occur involved in the problem? - The system "porous medium and reactions" Is it as a homogeneous system or should be defined two phases (phase gas and solid phase) and to note that the program holds the porous medium as fluid? In addition it is intended to model the heat transfer in the porous medium and want to specify what constitutes material, it will act at once as a catalyst for the reactions that I gave earlier. How Fluent manages this data? If the program finds the porous medium as fluid and as porous assure you that this area does not move. What is the best representation of packed bed reactor? I hope can help me. Thank you!

  Reply With Quote

Old   July 10, 2009, 04:58
Default Porous media with reactions
  #2
New Member
 
Join Date: Jul 2009
Posts: 1
Rep Power: 0
Claud is on a distinguished road
Hi Valeria,
did you find a way how to do it in FLUENT? I am also interested in this kind of topic but maybe you have some useful information or even example to provide.
Thanx in advance
Claud
Claud is offline   Reply With Quote

Reply

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
Reactions in porous media Cleiton FLUENT 1 November 12, 2008 21:29
Porous medium David FLUENT 3 March 20, 2005 14:48
Multiphase+Reactions+Porous Paresh Jain CFX 0 January 13, 2004 15:14
porous medium pepa FLUENT 0 September 8, 2003 18:07
DPM in porous medium rookie FLUENT 0 June 12, 2003 21:06


All times are GMT -4. The time now is 03:06.