Research Article

CFD Analysis on the Effect of Radial Gap on Impeller-Diffuser Flow Interaction as well as on the Flow Characteristics of a Centrifugal Fan

Table 1

Specifications of the centrifugal fan.

Centrifugal fan specifications

Impeller inlet radius, 120 mm
Impeller outlet radius, 200 mm
Diffuser inlet radius, 230 mm
Diffuser outlet radius, 300 mm
Volute exit flange width450 mm
Width of diffuser blade35 mm
Width of volute casing90 mm
Impeller inlet vane angle
Impeller outlet vane angle
Diffuser inlet vane angle
Diffuser outlet vane angle
Number of impeller vanes13
Number diffuser vanes13
Speed of the fan (RPM)1000 rrpm