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International Journal of Turbo & Jet-Engines

Ed. by Sherbaum, Valery / Erenburg, Vladimir


IMPACT FACTOR 2018: 0.863

CiteScore 2018: 0.66

SCImago Journal Rank (SJR) 2018: 0.211
Source Normalized Impact per Paper (SNIP) 2018: 0.625

Online
ISSN
2191-0332
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Volume 36, Issue 2

Issues

Investigation on the Performance of Forward Bending Fan

Zhou Shuiqing / Deng Hongying / Ma Yi / Zhang Shengchang
Published Online: 2016-12-21 | DOI: https://doi.org/10.1515/tjj-2016-0070

Abstract

The forward bending centrifugal fan features long vanes and narrow passages, and the internal flow is apt to be affected by wall boundary layer of the blade surfaces. An aerodynamic investigation on the forward bending centrifugal fan is presented in this paper. The performances of the unsteady flow field in the centrifugal fan is predicted by solving the incompressible Reynolds-averaged Navier-Stokes (RANS) equations based on the Shear Stress Transport (SST) – Scale Adaptive Simulation (SAS) turbulence model. And three-dimensional (3-D) flow phenomenon of non-uniform fluid flow is discussed through observing the flow separation and vortex distribution in the impeller region. The installation location of inlet nozzle is finally adjusted based on the calculated results, and the centrifugal fan with eccentric inlet nozzle is proposed. From the results, the eccentric inlet nozzle with L=3 mm, θ=120° could improve the internal flow of the forward bending centrifugal fan and enhance its aerodynamic performance.

Keywords: forward bending; numerical simulation; centrifugal fan; boundary layer; unsteady flow

PACS: 2010; 47.85.L-

References

  • 1.

    Lee YT. Impact of fan gap flow on the centrifugal impeller aerodynamics. J Fluids Eng 2010;132:091103–1.CrossrefWeb of ScienceGoogle Scholar

  • 2.

    Engin T, Gur M, Scholz R. Effects of tip clearance and impeller geometry on the performance of semi-open ceramic centrifugal fan impellers at elevated temperatures. Exp Therm Fluid Sci 2005;30:565–77.Google Scholar

  • 3.

    Cau G, Mandas N, Manfrida N, Nurzia F. Measurements of primary and secondary flows in an industrial forward-curved centrifugal fan. ASME J Turbomach 1990;112:84–90.Google Scholar

  • 4.

    Gong W, Lv W, Xi G, Zhang W. Experimental study on the velocity field near the tongue of a forward curved multi-blades centrifugal fan. Chinese J Mech Eng 2005;41:166–71.CrossrefGoogle Scholar

  • 5.

    Cao S, Chu L. Experimental study on the matching between centrifugal impeller and volute. Chinese Fluid Mach 1991;10:2–4.Google Scholar

  • 6.

    Bayomi NN, Hafiz AA, Osman AM. Effect of inlet straighteners centrifugal fan performance. Energ Convers Manage 2006;47:3307–18.CrossrefGoogle Scholar

  • 7.

    Vadari VR, Rugg GA, Reethof G. Effect of an annular inlet guide on the performance of low-speed centrifugal fans. In: Proceedings of the ASME noise control and acoustics division, 17–22 November 1996, NCA, vol. 22, Atlanta, Georgia, pp. 219–226.Google Scholar

  • 8.

    Gerald CL. Effect of inlet turbulators on backwardcurved impeller noise. In: FAN NOISE 2003 2nd international symposium, Senlis, France, 23–25 September 2003.Google Scholar

  • 9.

    Koumura K, Nakamura Y. Numerical analysis of flow between blades in sirocco fan. Jpn Soc Mech Eng Part B 2013;79:1514–23.CrossrefGoogle Scholar

  • 10.

    Suarez VS, Carlos SM, Rafael BT. Experimental Study on the Aeroacoustic Behavior of a Forward Curved Blades Centrifugal Fan. ASME J Fluids Eng 1999;121:276–81.CrossrefGoogle Scholar

  • 11.

    Qi D, Zhang Y, Wen S, Liu Q. Measurement and analysis of three-dimensional flow in a centrifugal fan volute with large volute width and rectangular cross-section. Proc I MechE Part A. J Power Energy 2006;220:133–53.CrossrefGoogle Scholar

  • 12.

    Qi D, Pomfret MJ, Lam K. A new approach to the design of fan volute profiles. Proc IMechE, Part C. J Mech Eng Sci 1996;210:287–94.CrossrefGoogle Scholar

About the article

Received: 2016-11-10

Accepted: 2016-12-06

Published Online: 2016-12-21

Published in Print: 2019-05-27


The project has been supported by the Natural Science Foundation of China, Grants no. 51406183.


Citation Information: International Journal of Turbo & Jet-Engines, Volume 36, Issue 2, Pages 207–217, ISSN (Online) 2191-0332, ISSN (Print) 0334-0082, DOI: https://doi.org/10.1515/tjj-2016-0070.

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