$\rho$

density

$G_k$

generation of turbulent kinetic

energy due to the mean velocity gradients

$\epsilon$

dissipation

$G_b$

generation of turbulence

kinetic energy due to buoyancy

${\alpha }_{\epsilon }$

inverse effective Prandtl numbers for ε

$S_{\epsilon }$

Energy user-defined source terms.

${\alpha }_k$

inverse effective Prandtl numbers for k

$S_k$

Energy user-defined source terms.

$C_{1\epsilon }$

constant in Equation (1)

${\mu }_{eff}$

effective viscosity

$C_{2\epsilon }$

constant in Equation (1)

$\tau$

stress tensor

$C_{3\epsilon }$

constant in Equation (1)

E

Energy

t

time

k

turbulence energy

h_fg

Latent heat antalpy

Q_l

latent heat

Q_s

sensible heat

H_av

the overall HTC