JOURNAL BROWSE
Search
Advanced SearchSearch Tips
An Investigation on Turbulent Flow Characteristics According to the Operating Loads of Three-Dimensional Small-Size Axial Fan by Large Eddy Simulation
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
An Investigation on Turbulent Flow Characteristics According to the Operating Loads of Three-Dimensional Small-Size Axial Fan by Large Eddy Simulation
Kim, Jang-Kweon; Oh, Seok-Hyung;
  PDF(new window)
 Abstract
This paper handled an investigation on the turbulent flow characteristics of three-dimensional small-size axial fan(SSAF) according to operating loads. Also, it was carried out by unsteady-state, incompressible and three-dimensional large eddy simulation(LES). The downstream flow type of SSAF is changed from axial flow to radial flow around the beginning of stall region at the aerodynamic performance curve. Axial mean velocity component largely grows around blade tip at the operating point of A to D, but transverse and vertical mean velocity components as well as Reynolds shear stresses highly develop around blade tip at the operating point of E to H. On the other hand, the peak value of turbulent kinetic energy developed around blade tip shows the highest at the operating point of E.
 Keywords
Courant Number;Dynamic Subgrid-Scale;Flow Coefficient;Large Eddy Simulation(LES);Mean velocity;Reynolds shear stress;Small-Size Axial Fan(SSAF);Sliding Mesh;Static Pressure Coefficient;Turbulent kinetic energy;
 Language
Korean
 Cited by
1.
운전점에 따른 3차원 소형축류홴의 와도 특성에 대한 대규모 와 모사,김장권;오석형;

한국동력기계공학회지, 2016. vol.20. 6, pp.64-70 crossref(new window)
 References
1.
SC/Tetra(Version 8), 2010, User's Guide, Software Cradle Co. Ltd.

2.
J. H. Zhou and C. X. Yang, 2008, "Design and Simulation of the CPU Fan and Heat Sinks", IEEE Trans. on Components and Packaging Technologies, Vol. 31, No. 4, pp. 890-903. crossref(new window)

3.
J. W. Kim, J. H. Kim and K. Y. Kim, 2010, "Flow Analysis and Performance Evaluation of a Ventilation Axial-Flow Fan Depending on the Position of Motor", J. of Fluid Machinery, Vol. 13, No. 4, pp. 25-30.

4.
J. Hurault, S. Kouidri, F. Bakir and R. Rey, 2010, "Experimental and Numerical Study of the Sweep Effect on Three-Dimensional Flow Downstream of Axial Flow Fans", Flow Measurement and Instrumentation, Vol. 21, pp. 155-165. crossref(new window)

5.
J. O. Han, S. Y. Lee, S. H. Yu and J. K. Lee, 2006, "The Study on Performance of an Axial Fan with Centrifugal Type Blades in Duct Flow", Proc. of 4th National Congress on Fluids Engineering, August 23-25, pp. 213-216, Kyung-ju, Korea.

6.
T. Ito, G. Minorikawa and Q. Fan, 2009, "Experimental Research for Performance and Noise of Small Axial Fan", Int. J. of Fluid Machinery and Systems, Vol. 2, No. 2, pp. 136-146. crossref(new window)

7.
S. H. Liu, R. F. Huang and C. A. Lin, 2010, "Computational and Experimental Investigation of Performance Curve of an Axial Flow Fan Using Downstream Flow Resistance Method", Experimental Thermal and Fluid Science, Vol. 34, pp. 827-837. crossref(new window)

8.
J. K. Kim, 2008, "Investigation on the Turbulent Flow-Field of a Small-Size Axial Fan with Different Operating Points", J. of the KSPSE, Vol. 12, No. 5, pp. 40-47.

9.
J. K. Kim and S. H. Oh, 2013, "Experimental Study on the Aerodynamic Performance Characteristics of a Small-Size Axial Fan with the Different Depths of Bellmouth", J. of the KSPSE, Vol. 17, No. 6, pp. 73-78.

10.
J. K. Kim and S. H. Oh, 2015, "A Study on the Structure of Turbulent Flow Fields According to the Operating Loads of Three-Dimensional Small-Size Axial Fan by Large Eddy Simulation", J. of the KSPSE, Vol. 19, No. 5, pp. 80-85.

11.
SYSTAT Software Inc., 2002, TableCurve2D User's Manual, Version 4 for Windows.

12.
T. Adachi, M. Yamashita, K. Yasuhara and T. Kawai, 1996, "Effects of Operating Conditions on the Flow in the Moving Blade Passage of a Single Stage Axial-Flow Fan", Proc. of 6th Int. Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Vol. 2, pp. 199-208.

13.
S. C. Morris, J. J. Good and J. F. Foss, 1998, "Velocity Measurements in the Wake of an Automotive Cooling Fan", Exp. Thermal and Fluid Science, Vol. 17, pp. 100-106. crossref(new window)