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
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Dipl. Ing. Thomas Fetzer
Institut für Wasser- und Umweltsystemmodellierung (IWS)
Lehrstuhl für Hydromechanik und Hydrosystemmodellierung
Universität Stuttgart, Pfaffenwaldring 61, 70569 Stuttgart
Email: [email protected]
Telefon: 0049-711-685-60103 ** fax: 0049-711-685-60430
http://www.hydrosys.uni-stuttgart.de
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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]>>:
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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