Table 2:
Computed flow parameters at design point operation of the fan.
Configuration type
Radial gap ratio
𝑅
g
r
Flow coefficient (
Φ
)
Max. efficiency
𝜂
(
%
)
Head coefficient
(
Ψ
)
A
0.05
0.085
22.84
0.235
B
0.10
0.073
24.59
0.304
C
0.15
0.066
27.37
0.360
D
0.20
0.074
22.63
0.333
E
0.25
0.078
22.02
0.3324
F
0.30
0.076
20.99
0.372