- #1
Hologram0110
- 201
- 10
I'm working on a model that needs to calculate the approximate thermal conductivity of a mixture of gases. I'm having trouble finding a model which is being used by one of my sources but is not cited and I can't seem to find a source for it. I'm hoping that someone here might recognize the model and identify a source.
The source is an MASc thesis. The formula is given as:
[tex]
k_{gas} = \frac{\sum _i y_{i}\sqrt[3]{M_{i}}k_{0,i}T^{s_{i}}}{\sum _i y_i\sqrt[3]{M_i}}
\left( 1 + \left(0.51 T_R ^{-2.26} \right) P_R ^{1+2.5 T_R ^{-6.2}} \right)
[/tex]
The first part is a mixing term, the second is pressure dependence. I believe it may be a crude semi-empirical relationship (possibly for monatomic gases)
The source is an MASc thesis. The formula is given as:
[tex]
k_{gas} = \frac{\sum _i y_{i}\sqrt[3]{M_{i}}k_{0,i}T^{s_{i}}}{\sum _i y_i\sqrt[3]{M_i}}
\left( 1 + \left(0.51 T_R ^{-2.26} \right) P_R ^{1+2.5 T_R ^{-6.2}} \right)
[/tex]
The first part is a mixing term, the second is pressure dependence. I believe it may be a crude semi-empirical relationship (possibly for monatomic gases)