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-   -   Could anybody help me about the specify inlet and outlet (http://www.cfd-online.com/Forums/openfoam-solving/60328-could-anybody-help-me-about-specify-inlet-outlet.html)

liugx212 February 9, 2006 16:47

Dear friend: I have a quest
 
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

fabianpk February 10, 2006 02:36

Are you referring to injection
 
Are you referring to injection of lagrangian particles or some eulerian injection?


/Fabian

liugx212 February 10, 2006 11:11

Hi friend: Sorry. I mean th
 
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

fabianpk February 13, 2006 07:59

You need to have some field th
 
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

liugx212 February 13, 2006 11:53

Hi friend, Thanks for your
 
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


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