An experimental study on the design of counter-rotating axial-flow fans was carried out. The fans were designed using an inverse method. In particular, the system is designed to have a pure axial discharge flow. The counter-rotating fans operate in a ducted-flow configuration and the overall performances are measured in a normalized test bench. The rotation rate of each fan is independently controlled. The relative axial spacing between fans can vary from 17% to 310%. The results show that the efficiency is strongly increased compared to a conventional rotor or to a rotor-stator stage. The effects of varying the rotation rates ratio on the overall performances are studied and show that the system has a very flexible use, with a large patch of high efficient operating points in the parameter space. The increase of axial spacing causes only a small decrease of the efficiency.
Skip Nav Destination
e-mail: florent.ravelet@ensam.eu
Article navigation
October 2012
Technical Briefs
Design and Experimental Validation of a Ducted Counter-Rotating Axial-Flow Fans System
H. Nouri,
H. Nouri
Arts et Metiers ParisTech, DynFluid Lab, 151 Boulevard de l’Hôpital, 75013 Paris,
France
Search for other works by this author on:
F. Ravelet,
F. Ravelet
Arts et Metiers ParisTech, DynFluid Lab, 151 Boulevard de l’Hôpital, 75013 Paris,
e-mail: florent.ravelet@ensam.eu
France
Search for other works by this author on:
F. Bakir,
F. Bakir
Arts et Metiers ParisTech, DynFluid Lab, 151 Boulevard de l’Hôpital, 75013 Paris,
France
Search for other works by this author on:
C. Sarraf,
C. Sarraf
Arts et Metiers ParisTech, DynFluid Lab, 151 Boulevard de l’Hôpital, 75013 Paris,
France
Search for other works by this author on:
R. Rey
R. Rey
Arts et Metiers ParisTech, DynFluid Lab, 151 Boulevard de l’Hôpital, 75013 Paris,
France
Search for other works by this author on:
H. Nouri
Arts et Metiers ParisTech, DynFluid Lab, 151 Boulevard de l’Hôpital, 75013 Paris,
France
F. Ravelet
Arts et Metiers ParisTech, DynFluid Lab, 151 Boulevard de l’Hôpital, 75013 Paris,
France
e-mail: florent.ravelet@ensam.eu
F. Bakir
Arts et Metiers ParisTech, DynFluid Lab, 151 Boulevard de l’Hôpital, 75013 Paris,
France
C. Sarraf
Arts et Metiers ParisTech, DynFluid Lab, 151 Boulevard de l’Hôpital, 75013 Paris,
France
R. Rey
Arts et Metiers ParisTech, DynFluid Lab, 151 Boulevard de l’Hôpital, 75013 Paris,
France
J. Fluids Eng. Oct 2012, 134(10): 104504 (6 pages)
Published Online: September 28, 2012
Article history
Received:
March 22, 2012
Revised:
August 28, 2012
Published:
September 27, 2012
Online:
September 28, 2012
Citation
Nouri, H., Ravelet, F., Bakir, F., Sarraf, C., and Rey, R. (September 28, 2012). "Design and Experimental Validation of a Ducted Counter-Rotating Axial-Flow Fans System." ASME. J. Fluids Eng. October 2012; 134(10): 104504. https://doi.org/10.1115/1.4007591
Download citation file:
Get Email Alerts
Related Articles
Improvement of Stalling Characteristics of an Axial-Flow Fan by Radial-Vaned Air-Separators
J. Turbomach (April,2010)
Effects of Compact Radial-Vaned Air Separators on Stalling Characteristics of an Axial-Flow Fan
J. Turbomach (April,2010)
Modeling Shrouded Stator Cavity Flows in Axial-Flow Compressors
J. Turbomach (January,2000)
Shaping of Tip End-Plate to Control Leakage Vortex Swirl in Axial Flow Fans
J. Turbomach (July,2010)
Related Proceedings Papers
Related Chapters
Introduction
Turbine Aerodynamics: Axial-Flow and Radial-Flow Turbine Design and Analysis
Fans and Air Handling Systems
Thermal Management of Telecommunications Equipment
Introduction
Axial-Flow Compressors