how to rank the selected species

lbj007 · April 28, 2021, 08:12

I want to know how to rank the selected species, what does most abundant by mass mean? does it refer to mass fraction or molar mass? and is only the last substance most important?

LuckyTran · April 28, 2021, 20:49

The species with the highest mass fraction needs to be last in the list. For the most part, only the bulk species needs to be last, the entire list doesn't have to be ranked. The reason is because the very last species is not actually solved using a transport equation but calculated using 1 minus all the rest.

lbj007 · April 28, 2021, 22:33

Quote:

Originally Posted by LuckyTran

The species with the highest mass fraction needs to be last in the list. For the most part, only the bulk species needs to be last, the entire list doesn't have to be ranked. The reason is because the very last species is not actually solved using a transport equation but calculated using 1 minus all the rest.

thanks

got it

April 28, 2021, 08:12	how to rank the selected species	#1
lbj007 Senior Member Join Date: Feb 2020 Posts: 114 Rep Power: 6	I want to know how to rank the selected species, what does most abundant by mass mean? does it refer to mass fraction or molar mass? and is only the last substance most important?

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April 28, 2021, 20:49		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,761 Rep Power: 66	The species with the highest mass fraction needs to be last in the list. For the most part, only the bulk species needs to be last, the entire list doesn't have to be ranked. The reason is because the very last species is not actually solved using a transport equation but calculated using 1 minus all the rest.