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Optimal Design of Axial Flow Fan Using Numerical Simulation

  • Jialu Liu
  • Yu Niu
  • Yanhua LiuEmail author
Conference paper
  • 229 Downloads
Part of the Environmental Science and Engineering book series (ESE)

Abstract

In this paper, Reynolds-averaged Navier–Stokes equations with the standard k−ε turbulent model and Multiple Reference Frame model were used to simulate the performance of axial flow fan. The simulation results were compared with the existing experimental data, and the reliability of the existing numerical simulation method was verified. Then, the variable velocity circulation design method was used to redesign the fan blades. Four types of blades were established using different circulation indexes (m = 0.2, 0.5, 0.7, and 1.0). The performance of the four redesigned fans was calculated by numerical simulation. The influence of circulation index on configuration parameters was studied. Results show that the efficiencies of the redesigned fans were higher than the original one. The efficiency of optimal designed fan could reach 70%, which is 35% higher than the original fan. Besides, the influence of the selected value of design efficiency, lift coefficient, and c/R during the design process on the fan efficiency was also discussed in the paper.

Keywords

Axial flow fan Optimal design Numerical simulation 

References

  1. 1.
    Maaloum, A., Kouidri, S., Bakir, F., Rey, R.: Effect of inlet duct contour and lack thereof on the noise generated of an axial flow fan. Appl. Acoust. 64, 999–1010 (2003)CrossRefGoogle Scholar
  2. 2.
    Huang, C.H., Gau, C.W.: An optimal design for axial-flow fan blade: theoretical and experimental studies. J. Mech. Sci. Technol. 26, 427–436 (2012)CrossRefGoogle Scholar
  3. 3.
    Jung, J.H., Joo, W.G.: Effect of tip clearance, winglets, and shroud height on the tip leakage in axial flow fans. Int. J. Refrig. 93, 195–204 (2018)CrossRefGoogle Scholar
  4. 4.
    Li, C., Li, X., Li, P., Ye, X.: Numerical investigation of impeller trimming effect on performance of an axial flow fan. Energy 75, 534–548 (2014)CrossRefGoogle Scholar
  5. 5.
    Zhang, L., He, R., Wang, X., Zhang, Q., Wang, S.: Study on static and dynamic characteristics of an axial fan with abnormal blade under rotating stall conditions. Energy 170, 305–325 (2019)CrossRefGoogle Scholar
  6. 6.
    Sarraf, C., Nouri, H., Ravelet, F., Bakir, F.: Experimental study of blade thickness effects on the overall and local performances of a controlled vortex designed axial-flow fan. Exp. Therm. Fluid Sci. 35, 684–693 (2011)CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.School of Human Settlements and Civil EngineeringXi’an Jiaotong UniversityXi’anChina

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