CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Could anybody help me about the specify inlet and outlet

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   February 9, 2006, 15:47
Default Dear friend: I have a quest
  #1
Senior Member
 
Guoxiang
Join Date: Mar 2009
Posts: 109
Rep Power: 17
liugx212 is on a distinguished road
Dear friend:

I have a question to ask for you. I want to specify the inlet and outlet in the block center, which look as the injection and production.

As a thought, I think there are two ways. One is that I create two blocks while small one block is looked as the injection. Another way is specifying a cell as the injection in only one block. But whatever, I do not know how to specify injection and production. Could any friend help me please?

Thank you very much.
Best wishes,
Guoxiang
liugx212 is offline   Reply With Quote

Old   February 10, 2006, 01:36
Default Are you referring to injection
  #2
Member
 
Fabian Peng Karrholm
Join Date: Mar 2009
Posts: 61
Rep Power: 17
fabianpk is on a distinguished road
Are you referring to injection of lagrangian particles or some eulerian injection?


/Fabian
fabianpk is offline   Reply With Quote

Old   February 10, 2006, 10:11
Default Hi friend: Sorry. I mean th
  #3
Senior Member
 
Guoxiang
Join Date: Mar 2009
Posts: 109
Rep Power: 17
liugx212 is on a distinguished road
Hi friend:

Sorry. I mean that I will test the case of the CH4 or CO2 sequestration. So the injection and production should be the eulerian. For example, I want to see the result after injecting 50 years and so on. Could you have any idea please?

Thank you very much,
Guoxiang
liugx212 is offline   Reply With Quote

Old   February 13, 2006, 06:59
Default You need to have some field th
  #4
Member
 
Fabian Peng Karrholm
Join Date: Mar 2009
Posts: 61
Rep Power: 17
fabianpk is on a distinguished road
You need to have some field that represents the fraction of each substance. Then you just specify the inlet patch to have a fixedValue at whatever fraction you're injecting. I am pretty sure you cannot have an internal face injecting things, it has to be a patch on the outside of a block that does not have another block next to it.

But I have to admit, I don't really know much about this.

/Fabian
fabianpk is offline   Reply With Quote

Old   February 13, 2006, 10:53
Default Hi friend, Thanks for your
  #5
Senior Member
 
Guoxiang
Join Date: Mar 2009
Posts: 109
Rep Power: 17
liugx212 is on a distinguished road
Hi friend,

Thanks for your useful idea. I have tried with the fixed value for nonuniform such as the U or others to set the initial value as the injection. Do you think this is ok?

Thanks again.
Guoxiang
liugx212 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
Without Inlet and outlet chetan FLUENT 4 February 11, 2008 12:45
Inlet-outlet BCs SUBHRA Main CFD Forum 0 June 3, 2004 20:15
one inlet and two outlet Fluenter FLUENT 2 March 28, 2004 23:23
use outlet as inlet Karin Phoenics 3 March 31, 2003 22:12
Outlet -> Inlet How? lego CFX 2 August 13, 2002 12:23


All times are GMT -4. The time now is 07:06.