Hi Lorenzo, It’s unclear what you mean: dsn/n is not the flux of the non-wetting phase, dsn/n=0 only means the capillary-pressure-driven part of the flux is zero. Anyway, for the immiscible two-phase model (2p) model, if you want to set the
(1) the non-wetting phase flux to zero: return zero for the Neumann boundary flux of the non-wetting balance (2) the non-wetting phase flux constant: return a constant for the Neumann boundary flux of the non-wetting balance (3) the capillary part of the flux to zero: assemble the remainder/non-zero part of the flux in the problem.neumann() function for the non-wetting balance For the 2pnc model we assemble component balances (essentially the same as for 2p because the two component only exist in their respective phase), so that with Neumann, you set the total flux of a component (summed over all phases), but again, if you want to set the (1) the oil flux to zero: return zero for the Neumann boundary flux of the oil balance (2) the oil flux constant: return a constant for the Neumann boundary flux of the oil balance (3) the capillary part of the flux to zero: assemble the remainder/non-zero part of the flux in the problem.neumann() function for the oil balance Timo > On 1. Feb 2019, at 09:50, lc <lorenzo.camp...@uniroma1.it> wrote: > > Good morning, > > but so, how can I impose the flux of the non-wetting phase (oil) to be > constant, dsn/dn = 0, at the right boundary? > > > Kind regards, > > Lorenzo > > On 31.01.2019 0:43, Flemisch, Bernd wrote: >> >> 1) It seems that you are setting no-flow for the saturation on the right >> boundary. I'm not very surprised by the result. >> > _______________________________________________ > Dumux mailing list > Dumux@listserv.uni-stuttgart.de > https://listserv.uni-stuttgart.de/mailman/listinfo/dumux _______________________________________________ Dumux mailing list Dumux@listserv.uni-stuttgart.de https://listserv.uni-stuttgart.de/mailman/listinfo/dumux
