NomenclatureΒΆ
General conventions for variable names:
Symbol or numeric subscripts are not separated by underscores: Vx, Alpha1.
Accents and descriptive subscripts are separated by underscores: Vt2_rel, mdot_stall.
Stagnation quantities are denoted by a subscript letter oh: Po, ho_rel.
Depending on context, concatenation of symbols is either: a product, such as rhoVx; or a stack along the first array dimension, like xrt.
Symbol |
Quantity |
Units |
---|---|---|
a |
Acoustic Speed |
m/s |
cp |
Specific heat capacity at constant pressure |
J/kg/K |
cv |
Specific heat capacity at constant volume |
J/kg/K |
gamma |
Ratio of specific heats |
|
h |
Specific enthalpy |
J/kg |
mu |
Dynamic viscosity |
kg/m/s |
P |
Pressure |
Pa |
Pr |
Prandtl number |
|
rgas |
Specific gas constant |
J/kg/K |
rho |
Mass density |
kg/m^3 |
s |
Specific entropy |
J/kg/K |
T |
Temperature |
K |
u |
Specific internal energy |
J/kg |
x |
Axial coordinate |
m |
r |
Radial coordinate |
m |
t |
Tangential coordinate |
rad |
m |
Meridional coordinate |
m |
Omega |
Shaft angular velocity |
rad/s |
y |
Cartesian vertical coordinate |
m |
z |
Cartesian horizontal coordinate |
m |
spf |
Span fraction coordinate |
|
V |
Velocity |
m/s |
mdot |
Mass flow rate |
kg/s |
Alpha |
Yaw angle |
deg |
Beta |
Pitch angle |
deg |
U |
Blade speed |
m/s |
e |
Specific total energy |
J/kg |
I |
Rothalpy |
J/kg |
Ma |
Mach number |
|
A |
Area |
m^2 |
zeta |
Surface distance coordinate |
m^2 |