Download VORTEX -NT USER MANUAL

t
time (s)
T_
inside room surface temperature (oC)
TIN
inlet air temperature (oC)
TAO_
outside air temperature (oC)
TMRT
local mean radiant temperature (oC)
TOBS(I)
temperature of obstacle I (oC)
TURBIN
turbulence intensity of air at supply outlet
Uf
floor heat conduction coefficient (W/m2K)
Ui
tensor velocity component (m/s)
Ut
heat transmission coefficient for a bare floor (W/m2K)
U,V,W
mean velocity components in x, y, z directions (m/s)
UIN,VIN,WIN inlet velocity components in x, y, z directions (m/s)
VAO_
outdoor air velocity (m/s)
W
room width in z direction (m), or west wall
_WIN_
window coordinates
X(I)
position of grid I in x direction (m)
xn
thickness of layer n (m)
Y(J)
position of grid J in y direction (m)
Z(K)
position of grid K in z direction
Greek letters
ß
ε
φ
κ
Γφ
µ, µt
ρ
σl, σt
volumetric expansion coefficient (1/K)
turbulence dissipation rate
dependent variable
Karman’s constant (= 0.4187)
diffusion coefficient
laminar and turbulent viscosities of air (Pa s)
air density (kg/m3)
laminar and turbulent Prandtl numbers
Subscripts
B
c
e
i
k
s
t
ε
buoyancy
concentration
effective
vector dimension
kinetic energy
shear
turbulent
kinetic energy dissipation