Archives
 
Year 2024
 
Issue 6 [12 - 2024], Year XXXIII

Control of axial fan loss using numerical simulation method

https://mij.hoimovietnam.vn/en/archives?article=24065

  • Affiliations:

    1 Hanoi University of Mining and GeoIogy, 18.Vien Street, Ha Noi, Vietnam

  • *Corresponding:
    This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Received: 2nd-May-2024
  • Revised: 20th-July-2024
  • Accepted: 5th-Aug-2024
  • Online: 16th-Dec-2024
Pages: 50 - 57
Views: 124
View onlineView online
Downloads: 8
Downdload PDF
★★★★★Rating: , Total rating: 0
  • ★
  • ★
  • ★
  • ★
  • ★
Yours rating

Abstract:

The airflow passing through the fan can be divided into two components: the main flow passing through the blades will be powered and the flow loss at the gap between the fan and the casing. This airflow is in the opposite direction of the main flow and is a source of energy loss and noise. The numerical simulations presented in this study provide an in-depth look at this phenomenon. CFD fluid dynamics simulation and computational tools allow access to the flow structure in the space between the blades and casing, which is not easily done by experimental methods. This study presents CFD results performed on a hollow fan fabricated by centrifugal casting technology. Thanks to this hollow nature, compressed air is pumped into the middle of the fan and the compressed air escapes through holes arranged around the fan circumference. This allows active control of loss flow and allows improved fan aerodynamic characteristics.

How to Cite
Dang, D.Vu, Pham, T.Van, Nguyen, H.The and Le, T.Hong Thi 2024. Control of axial fan loss using numerical simulation method (in Vietnamese). Mining Industry Journal. XXXIII, 6 (Dec, 2024), 50-57. .
References

1 . A. Pogorelov, M. Meinke and w. Schroder (2016). Effects of tip gap width on the flow field in an axial fan. Int J HeatFluidFl2016. 61: 466-481. DOI: https://doi.Org/10.1016/j.ijheatfluidflow

2 . D. You, M. Wang, P. Moin (2006). Effects oftip-gap size on the tip-leakage flow in a turbomachinery cascade. Phys Fluid 2006; 18(10): 105102. D0l:10.1063/1.2354544

3 . T. Fukano, Y. Kodama & Y. Takamatsu (1986). The effect of the tip clearance on the noise of low pressure axial and mixed flow fans. Journal of Sound and Vibration, 105, 291-308.

4 . Fukano and Kodama Y (1992). Prediction of sound powerof the low pressure axial and diagonal flow fans. Fan noise symposium, Senlis.

5 . M. Inoue, M. Kuroumaru & M. Fukuhara (1986). Behavior of tip leakage flow behind an axial compressor rotor. Journal of Engineering for Gas Turbines and Power, 108 :7-14. D0I:10.1243/09576509JPE329

6 . F. Kameier, w. Neise (1997). Experimental study of tip clearance losses and noise in axial turbomachinery and their reduction. ASME Journal of Turbomachinery. 119, 460 - 471. DOI: 10.1115/1.2841145

7 . M. Buisson, P. Ferrand, L. Soulat, S. Aubert, S. Moreau, c. Rambeau & M. Henner (2013). Optimal design of an automotive fan using the Turb’0pty meta-model. Computers & Fluids, 80. 207-213. D0I:10.1016/j.compfluid.2012.03.015

8 . S. Nadeau, w. Holmes (2003). Turbomachine with double-faced rotor-shroud seal structure. Siemens Automotive. United states Patent number 6508624.

9 . S. Nadeau. Integral tip seal in a fan-shroud structure (2005). Siemens VDO Automotive. Unitedstates Patent number 6874990.

10 . V. Schramm, J. Denecke, S. Kim, et al (2004). Shape optimization of a labyrinth seal applying the simulated annealing method. Int J Rotat Mach 2004; 10(5): 365-371.

11 . Matjaz Eberlinc, Brane Sirok& Marko Hocevar (2009). Experimental investigation ofthe interaction of two flows on the axial fan hollow blades by flow visualization and hot-wire anemometry. Experimental thermal and fluid science, 33(5):929-937.

12 . Matjaz Eberlinc, Brane Sirok & Marko Hocevar (2009). Patented hollow blades ofthe axial fan with trailing edge self-induced blowing. Recent Patents on Mechanical Engineering, 2(1):1-7.

13 . L. Neuhaus, w. Neise (2009). Active Flow Control to Improve the Aerodynamic and Acoustic Períormance of Axial Turbomachines (2009). ASME Turbo Expo 2009. D0M0.1115/GT2009-60008.

14 . L. Neuhaus, w. Neise. Active control to improve the aerodynamic períormance and reduce the tip clearance noise of axial turbomachines with steady air injection into the tip clearance gap. In: King R (ed.) Active flow

15 . Vu-Dinh DANG. (2021), Étude de rinAuence des paramètres du procédé de rotomoulage sur les caractéristiques aérodynamiques de fonctionnement d’un ventilateur axial. Thèse Doctorat (PhD).

Other articles