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-   -   mass fraction of mixture (http://www.cfd-online.com/Forums/fluent/90994-mass-fraction-mixture.html)

wlt_1985 July 27, 2011 10:45

mass fraction of mixture
 
I activated species transport and define mixture in my mode. After initialization, I were patching to the zone in order to define the mass fraction of the mixture. Lets say 0.7 for water while 0.3 for ethanol. There was no reaction just only flow in closed vessel by stirrer. However, contour showing that entire domain consisted of water and there was no ethanol at all after iteration.What's wrong with my model and pls help me. Thanks.

Best regards

chaos July 28, 2011 01:23

hi i've the same problem with simulating a funnel. doesn't matter what mass fraction in use in my o2-air mixture there's no o2...

chaos July 28, 2011 09:39

well i found out the problem in my case maybe it is helping you too.

you have to calculate the whole model and not only the species.
i calculated at first only the stream of the air an then only the species but that didn't work.
you have to make every thing enabled under solution.


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