From: <herve.grandjean@gm...>  20061207 10:13:17

Hi St=E9phane, The values of T I get are pretty close to zero, like 0.00001: it's not much, but as I am looking for quite small values of concentrations, it's confusing. Looking at the results of T depending on time, the behaviour of = T is the following one: it begins very close to zero (like 10^100) then it i= s increasing, sometimes oscillating between small negative values and small positive ones... But I can assure you that I get negative values in cells which are not cut by the solid boundaries...I cannot post here my gts file, since it is quite big. I haven't understood very clearly your advise "It would be good if you could repoduce this in a simpler configuration"? If I can help, please let me know. Have a nice day herv=E9 2006/12/4, Stephane Popinet <s.popinet@...>: > > Hi Herv=E9, > > > I am performing a simulation which includes the advection of a tracer T= . > > But when looking at the results of the calculations in the "data" file > > (coming from OutputLocation { istep =3D 10 } data positions ), I get > > negative values of T! I am very confused about that. It makes sense to > > get negative values for the pressure for instance, but not for T, right= ? > > Yes, the values should stay "close to" positive. How negative are the > values you get? > > I have had a similar problem before but didn't look more into it at the > time.... It should be limited to cells cut by the solid boundary. It > would be good if you could repoduce this in a simpler configuration. I > would use this to track the bug down. > > Stephane > >  > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share > your > opinions on IT & business topics through brief surveys  and earn cash > http://www.techsay.com/default.php?page=3Djoin.php&p=3Dsourceforge&CID=3D= DEVDEV > _______________________________________________ > Gfsusers mailing list > Gfsusers@... > https://lists.sourceforge.net/lists/listinfo/gfsusers > 