Dear Johannes,
Thanks for your reply.
The problem with this approach is that we need a boundary condition for
the equation corresponding to the ODE while in principle, the ODE only
needs an initial condition.
Best regards
Etienne
Le 11/12/2014 10:50, Johannes Hommel a écrit :
Dear Etienne,
the approach you describe is exactly the approach I am currently
using, with Q in (DStorage/Dt + div F - Q =0) being a function of the
composition of the water phase concentrations.
Thus, I can tell you that it works.
Best regards,
Johannes Hommel
On 12/11/2014 10:38 AM, Etienne Ahusborde wrote:
Dear DuMuX users,
I try to explain quickly my issue. I have a problem with several
aqueous concentrations Ci and an other solid concentration S.
All the concentrations Ci are solution of coupled partial
differential equations (PDE) that depend on S while S is solution of
an ordinary differential equation (ODE) depending on S and Ci.
So I would like to know if in DuMuX it is possible to solve an ODE?
Currently, we have tried to use the general framework (DStorage/Dt +
div F - Q =0) and to take an flux F equal to 0 in the equation
corresponding to S.
I think that it could work but it's not really accurate.
Thanks in advance for your reply.
Best regards
Etienne Ahusborde
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