Dear Mojdeh, sorry for answering so late. The sum of the mole fractions equals 1 in case the phase is present. So far it is clear. However, when a phase is not present, we use the (hypothetical) mole fractions of components in non-existing phases to check, if the respective phase is still not existing. If the sum of the hypothetical mole fractions exceeds 1, we know that actually this phase finds conditions at which it can exist. Thus, the switching is indicated.
Does this explain the question? Best regards, Holger On Wed, Aug 28, 2013 at 05:06:15PM +0200, mojdeh rasoulzadeh wrote: > > Dear DuMux, > I have a question to which I would be grateful for your answer. > In 3p3c, as it is said in DuMux handbook, we use the auxiliary equation of > sum of mole fractions in either of the phases should be equal to one. > My question is where exactly in the code we do imply this condition? > In the switching part how come we get to sum of mole fractions more than one > in the case of appearance of a phase while we have forced it to be one? > Thank you in advance, > Mojdeh > _______________________________________________ > Dumux mailing list > [email protected] > https://listserv.uni-stuttgart.de/mailman/listinfo/dumux -- Holger Class ############################################################################### Lehrstuhl fuer Hydromechanik und Hydrosystemmodellierung (LH2) Institut für Wasser- und Umweltsystemmodellierung (IWS), Universitaet Stuttgart www.iws.uni-stuttgart.de/hydrosys email: [email protected] Pfaffenwaldring 61 ** 70550 Stuttgart Tel.: ++49 711 / 685-64678 Fax.: ++49 711 / 685-60430 ##################################Rom#1,23##################################### ******************************************************* !!!! CMWR 2014: 10-13 June 2014 in Stuttgart !!!! Please visit www.cmwr14.de ******************************************************* _______________________________________________ Dumux mailing list [email protected] https://listserv.uni-stuttgart.de/mailman/listinfo/dumux
