Total Unsteadiness Downstream of an Axial Flow Fan With Variable Pitch Blades-Reference-Cited by-同舟云学术

Total Unsteadiness Downstream of an Axial Flow Fan With Variable Pitch Blades

Published:2001-09-10 Issue:1 Volume:124 Page:280-283
ISSN:0098-2202
Container-title:Journal of Fluids Engineering
language:en
Short-container-title:

Author:

Velarde-Sua´rez Sandra¹,Ballesteros-Tajadura Rafael¹,Santolaria-Morros Carlos¹,Blanco-Marigorta Eduardo¹

Affiliation:

1. Universidad de Oviedo, A´rea de Meca´nica de Fluidos, Campus de Viesques, 33271 Gijo´n, Asturias, Spain

Abstract

Variable pitch axial flow fans are widely used in industrial applications to satisfy variable operating conditions. The change of the blade pitch leads to a different rotor geometry and has a major influence on the unsteady operation of the machine. In this work, an experimental research on an axial flow fan with variable pitch blades has been carried out. First of all, the fan performance curves has been obtained. Then the flow field has been measured at ten radial locations both at the inlet and exit rotor plane using hot wire anemometry. Velocity components and total unsteadiness were determined and analyzed in order to characterize the influence of pitch blade and operating conditions on the flow structure.

Publisher

ASME International

Subject

Mechanical Engineering

Link

http://asmedigitalcollection.asme.org/fluidsengineering/article-pdf/124/1/280/5901273/279_1.pdf

Reference8 articles.

1. Goto, A. , 1992, “Three-dimensional flow and mixing in an axial flow compressor with different rotor tip clearances,” ASME J. Turbomach., 114, pp. 675–685.

2. Moore, J., and Moore, J. G., 1998, “Turbulence energy and spectra downstream of an axial compressor rotor,” AIAA Paper No. 98-2550.

3. Liu, B., Moore, J. G., and Moore, J., 1998, “Total unsteadiness downstream of an axial compressor rotor,” AIAA Paper No. 98-0967.

4. Marples, J., “A Discussion of Fan Air Quantity Control with Particular Respect to Axial Flow Fans and Variable Pitch Mechanisms,” Proceedings of the BHRA International Conference on Fan Design & Applications, paper K2, pp. 445–459, Guilford, England, 1982.

5. O’Neill, A. C., “Variable Pitch Axial Flow Fans,” Proceedings of the BHRA International Conference on Fan Design & Applications, paper K3, pp. 461–499, Guilford, England, 1982.

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