c
|
= chord
|
\[k_{1},\ k_{2}\]
|
= excited diametrical
modes
|
f
|
= frequency (Hz);
|
N |
= vane or blade count; |
N |
= rotational speed (rpm); |
p |
= static pressure (Pa); |
m |
= mass flow rate (kg/s); |
η |
= aerodynamic efficiency; |
Ω |
= angular velocity (rad/s); |
ω |
= mode angular velocity (rad/s); |
ρ |
= density (kg/m3); |
µ |
= dynamic viscosity
(kg.m-1.s-1); |
θ |
= angular position (rad); |