Page 80 - Modelling in Transport Phenomena A Conceptual Approach

NOTATION 61

thermal dsusivity, m2/ s
difference
fictitious film thickness for momentum transfer, m
fictitious film thickness for mass transfer, m
fictitious film thickness for heat transfer, m
emissivity
viscosity, kg/ m. s
kinematic viscosity (or, momentum diffusivity), m2/ s
total momentum flux, N/ m2
density, kg/ m3
Stefan-Boltzmann constant, W/ m2. K4
flux of 2 - momentum in the y - direction, N/ m2

average value of a
Superscript

sat saturation
Subscripts
A, B species in binary systems
ch characteristic
i species in multicomponent systems
W surface or wall
oc) free-stream
Dimensionless Numbers
Nu Nusselt number for heat transfer
NUM Nusselt number for mass transfer
Pr Prandtl number
Re Reynolds number
sc Schmidt number
Sh Sherwood number
StH Stanton number for heat transfer
StM Stanton number for mass transfer

RXFERENCE

Slattery, J .C., 1999, Advanced Transport Phenomena, Cambridge University Press,
Cambridge.