Hi Lorenzo, it all depends on your setup. Probably something wrong with your custom material law.
What have you tried so far to fix your issue? Timo > On 2. Nov 2018, at 11:53, lc <lorenzo.camp...@uniroma1.it> wrote: > > Hello Dennis, > > thank you. I did as you suggested but as I do this, the Newton solver does > not converge anymore on any grid level. > > Do you have any hints? > > Thank you, > > Lorenzo > On 02/11/2018 10:45, Dennis Gläser wrote: >> Good morning Lorenzo, >> >> per default, the formulation for the 2p model is pw-sn. That means your >> primary variables are the water pressure and the non-wetting phase >> saturation (in your case oil I assume). Therefore, Indices::swIdx does not >> exists as it is not part of your primary variables. >> >> Since you are considering a two-phase system, just set the oil saturation by >> doing >> >> values[Indices::snIdx] = 1.0 - std::min(smax, smin + exp_value + >> small_number); >> >> This is what you want I guess. >> >> Best wishes, >> Dennis >> >> >> On 02.11.2018 08:37, lc wrote: >>> Good morning, >>> >>> I'd like to ask how to impose an initial condition on the water saturation >>> and not on the oil saturation. >>> >>> Actually, what I implemented is the following: >>> >>> const auto pos = fvGeometry.subContVol[scvIdx].global; >>> double x_0 = 0.; >>> double smin = 0.2121; >>> double smax = 0.7856; >>> double exp_arg = (0.5 - >>> pow((pos[0]-x_0)/(2.+cos(3.*sqrt(std::abs(pos[1]-75.0)))), 2.) ); >>> double exp_value = exp_arg >= -100 ? exp(exp_arg) : 0; >>> double small_number = 1e-6; >>> >>> values[Indices::snIdx] = std::min(smax, smin + exp_value + >>> small_number); >>> >>> but this last line, should be imposed on values[Indices::swIdx] but if I >>> write it I get an error, not declared variable. >>> >>> >>> Thank you, >>> >>> Lorenzo >>> >>> >>> >>> >>> _______________________________________________ >>> Dumux mailing list >>> Dumux@listserv.uni-stuttgart.de <mailto:Dumux@listserv.uni-stuttgart.de> >>> https://listserv.uni-stuttgart.de/mailman/listinfo/dumux >>> <https://listserv.uni-stuttgart.de/mailman/listinfo/dumux> >> >> >> >> _______________________________________________ >> Dumux mailing list >> Dumux@listserv.uni-stuttgart.de <mailto:Dumux@listserv.uni-stuttgart.de> >> https://listserv.uni-stuttgart.de/mailman/listinfo/dumux >> <https://listserv.uni-stuttgart.de/mailman/listinfo/dumux> > _______________________________________________ > Dumux mailing list > Dumux@listserv.uni-stuttgart.de > https://listserv.uni-stuttgart.de/mailman/listinfo/dumux
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