Hi Elena,
they are implemented in a model-independent way. Have you actually tried
using them for 2p or richards? If yes, which problems do you encounter?
Kind regards
Bernd
On 11/26/2014 08:45 AM, Elena Shaporenko wrote:
Hello Bernd,
Outflow boundary conditions have been implemented for the
fully-implicit models 1p2c, 2p2c(ni) and stokes(2cni), but I need
use this boundary condisions for 2p and Richards models. I have been
using Dumux 2.5, may be it has implemented in Dumux 2.6?
Thank you for your help
Elena
2014-11-24 21:07 GMT+03:00 Bernd Flemisch <[email protected]
<mailto:[email protected]>>:
Hi Elena,
you also might want to check out the test in test/implicit/1p2c.
There, an outflow boundary condition is used, maybe that is what
you want. It only works if stuff really is flowing out (or at
least not flowing in).
Kind regards
Bernd
On Mon, 24 Nov 2014 18:58:39 +0100
Thomas Fetzer <[email protected]
<mailto:[email protected]>> wrote:
>Hi Elena,
>
>if you want the liquid to flow out, you can just specify a
Dirichlet boundary condition by setting it in the
boundaryTypesAtPos() function and setting the value in the
dirichletAtPos()in your problem.
>If you take the cell pressure also at the boundary this would end
up in Neumann no-flow boundary again (because then you do not have
a pressure gradient).
>
>Best regards,
>Thomas
>
>
>%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>Dipl. Ing. Thomas Fetzer
>Institut für Wasser- und Umweltsystemmodellierung (IWS)
>Lehrstuhl für Hydromechanik und Hydrosystemmodellierung
>Universität Stuttgart, Pfaffenwaldring 61, 70569 Stuttgart
>Email: [email protected]
<mailto:[email protected]>
>Telefon: 0049-711-685-60103 ** fax: 0049-711-685-60430
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>%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>
>Am 11/24/2014 um 04:48 PM schrieb Elena Shaporenko:
>> Hi Christoph,
>>
>> I'm afraid I put it wrong and you did not understand me. I need
a free
>> boundary for the liquid phase. Zero flow means that the fluid
does not
>> leave the area, but I need it to flow out freely. I would use
Dirichlet
>> boundary condition if I could if I could put the border cell
pressure as
>> boundary pressure. How can I do this?
>>
>>
>> I work together Kirill Gerke.
>>
>>
>> Elena
>>
>>
>> 2014-11-24 18:22 GMT+03:00 Christoph Grüninger
>> <[email protected]
<mailto:[email protected]>
>> <mailto:[email protected]
<mailto:[email protected]>>>:
>>
>> Hi Elena,
>> you need a Neumann boundary condition with zero flux. Or
did I miss your
>> question?
>>
>> Just out of curiosity: What's your affiliation?
>>
>> Bye,
>> Christoph
>>
>> --
>> GDB does hate your application, expresses its contempt
through the
>> design of its command-line interface. -- Tom Tromey,
FOSDEM 2014
>>
>>
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>>
>>
>>
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_______________________________________________________________
Bernd Flemisch phone: +49 711 685 69162
IWS, Universitaet Stuttgart fax: +49 711 685 67020
Pfaffenwaldring 61 email: [email protected]
<mailto:[email protected]>
D-70569 Stuttgart url: www.hydrosys.uni-stuttgart.de
<http://www.hydrosys.uni-stuttgart.de>
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IWS, Universität Stuttgart fax: +49 711 685 60430
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