ME 405
Fall 2006
Professor John M. Cimbala Lecture 14
Today, we will:
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Continue our discussion of gradient diffusion
Discuss the Reynolds analogy
Discuss evaporation of a pure liquid in stagnant air – Section 4.5
Do some example problems
10/09/2006
Section 4.5.3 – Evaporation of a liquid from a container, open to nearly stagnant air on
top:
z
G
Nj
ya(z)
Plane P
yj(z)
Air (a) and
vapor (j)
Interface
0
Mol fraction
1
Area A
Liquid, j
xj = 1
xa = 0