mass fraction of mixture

wlt_1985 · July 27, 2011, 11:45

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, 02:23

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, 10:39

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.

July 27, 2011, 11:45	mass fraction of mixture	#1
wlt_1985 Senior Member raymond Join Date: Nov 2009 Posts: 149 Rep Power: 17	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

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July 28, 2011, 02:23		#2
chaos New Member Join Date: Aug 2010 Posts: 20 Rep Power: 16	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...

July 28, 2011, 10:39		#3
chaos New Member Join Date: Aug 2010 Posts: 20 Rep Power: 16	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.