u	axial velocity, (m2 s−1)
v	transverse velocity, (m2 s−1)
p	pressure, kPa
y	transvers coordinate, (m)
$\mathsf{\rho }$	Density, (kg m−3)
T	temperature, (k)
D	mass diffusivity, (m2 s−1)
Cp	heat capacity, (J mol−1 K−1)