
#1
Feb2505, 09:38 AM

Sci Advisor
PF Gold
P: 1,481

I am searching for the physical properties of a binary gaseous mixture.
In particular, I would want to know the local viscosity [tex] \mu[/tex] and local mass diffusitivity [tex] D[/tex] of any binary mixture of gases, as a function of the local mass fraction of each other. I have not found nothing in Google, Thanks. 



#2
Feb2505, 11:15 AM

Sci Advisor
P: 5,095

Try looking under Transport Properties. I found a cool littole calculator that may give you waht you need:
http://grashof.engr.colostate.edu/tools/diffus.html 



#3
Feb2505, 11:21 AM

Admin
P: 21,630

Fred, that's excellent! The species seem to cover a wide variety from fuel/power and chemical/process industries.
I'd love to get my hands on the calculator engine. 



#4
Feb2505, 12:48 PM

Sci Advisor
PF Gold
P: 1,481

Binary Gas Mixture
It could be very useful, but that is not what I am currently searching.
I am looking for an analytical or experimental expression: [tex] \mu=\mu(Y_1,Y_2,\mu_1,\mu_2)[/tex] [tex] D=D(Y_1,Y_2,D_1,D_2)[/tex] where Y1 and Y2 represent the mass fraction of each component. 



#5
Jul1105, 10:23 AM

Sci Advisor
PF Gold
P: 1,481

Fred!!! Your link doesn't work now. And I need urgently a similar calculator. Do you know any other?
Thanks!! 



#6
Aug1505, 11:57 PM

P: 254

Just use mole fractions
[tex] \mu_{mix} = \sum x_i \mu_i [/tex] Where the mole fractions can be found by using the mass fractions and the molar weights. 



#7
Aug1605, 06:41 AM

Sci Advisor
P: 5,095

Ooops. Sorry about that Clausius. I wasn't ignoring you. I didn't see your post. I hope you didn't get too much in a pinch. Do you still need a calculator like that old one?



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