Comparison of Thin Plate and Thick Aerofoil Blades in a Centrifugal Fan.

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Abstract:

The patterns and stability of the airflow in the rotor of a centrifugal fan have been studied, with thin plate blading and with thick aerofoil blades. Specifications of the blading are presented, and a detailed comparison is made of the visualised flow patterns in the channels, exit velocity profiles, flow characteristic curves, and operating range. It is concluded that the aerofoil blading has a wider operating range, and some explanations of this are derived from study of the flow patterns. Author

Author(s):
Fowler, H. S.
Author Organization(s):
NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF MECHANICAL ENGINEERING
Descriptive Note:
Mechanical engineering rept.,
Pagination:
0031

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
DME-ME-238, NRC-12166
Monitor Series:
12166
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*ROTOR BLADES(TURBOMACHINERY), AXIAL FLOW FANS, FLOW SEPARATION, TURBULENCE, IMPELLERS, FLOW VISUALIZATION, EXPERIMENTAL DATA, CANADA
Field(s)/Group(s):
Non-electrical Energy Conversion, Jet and Gas Turbine Engines
Report Date:
1971 Aug 01