- #1
womfalcs3
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Homework Statement
I am trying to integrate the momentum equation in the Navier-Stokes equations, and I need to make sure I have the density formulation correct. I'm unsure of my work because a lot of the terms in the end are canceling out.
It's a two-phase mixture, so the sum of the partial pressures is:
P = P_a+P_v
Where a and v denote air and vapor, respectively.
Homework Equations
Ideal gas law
density=P/(R_gas*T)
The Attempt at a Solution
Using the sum of partial pressures, I'm getting this for total density:
[tex]\rho[/tex]=[tex]\rho_{a}*R_{a}/R[/tex]+[tex]\rho_{v}*R_{v}/R[/tex]
Where R is the total gas constant.I am trying to find an equation for the total density in terms of the partial densities.