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cellMixture: multi-component mixture

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Old   June 23, 2009, 12:25
Default cellMixture: multi-component mixture
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mgc
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Hi all!

cellMixture in multiComponentMixture is defined as:

<<
forAll (i)
{
cellMixture += Y[i] / species[i].W() * speciesData[i]
}
>>

Does anyone know why the mass fracction of i-species is divided by the mol-weight of i-species?

Thanks!
María
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Old   June 29, 2009, 11:18
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Quote:
Originally Posted by mgc View Post
Hi all!

cellMixture in multiComponentMixture is defined as:

<<
forAll (i)
{
cellMixture += Y[i] / species[i].W() * speciesData[i]
}
>>

Does anyone know why the mass fracction of i-species is divided by the mol-weight of i-species?
Thats because the speciesData is given per moles.

If you are missing the mol-weight of the mixture it doesnt make any difference
if you multiply everything with the same factor

so if it were to read like this
cellMixture += Wtot*Y[i] / species[i].W() * speciesData[i]

you would still get the same results, no matter the value on Wtot, hence you can set Wtot=1.
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Old   July 15, 2009, 05:59
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Have a look at the bug forum
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