Flow Characteristics Impeller Change of an Axial Turbo Fan
In this paper, three dimensional flow characteristic was
presented by a revision of an impeller of an axial turbo fan for
improving the airflow rate and the static pressure. TO consider an
incompressible steady three-dimensional flow, the RANS equations
are used as the governing equations, and the standard k-ε turbulence
model is chosen. The pitch angles of 44°, 54°, 59°, and 64° are
implemented for the numerical model. The numerical results show that
airflow rates of each pitch angle are 1,175 CMH, 1,270 CMH, 1,340
CMH, and 800 CMH, respectively. The difference of the static
pressure at impeller inlet and outlet are 120 Pa, 214 Pa, 242 Pa, and 60
Pa according to respective pitch angles. It means that the 59° of the
impeller pitch angle is optimal to improve the airflow rate and the
static pressure.
[1] Railly, J. W., 1984, Computational Methods in Turbomachinery,
Mechanical Engineering Publications, London.
[2] Kim, K. Y., Kim, J. Y., and Chung, J. Y., 1997, Three-dimensional
analysis of the flow through an axial-flow fan, Journal of KSME, Vol. 21,
No. 4, pp. 541-542.
[3] Hur, N. K., Kim, U., Kang, S. H., 1999, A numerical study on cross flow
fan : effect of blade shapes on fan performance, Journal of. KFMA, Vol.
2, No.1, pp. 96-102.
[4] Jorjensen, R., 1976, Fan engineering, Buffalo, New York, pp. 217-222.
[5] Lakshminarayana, 1996, "Fluid dynamics and heat transfer of
turbomachinery", Wiley. Interscience, pp.358-362.
[6] Ryu, I. K., 2003, Studies on the airflow characteristics with revision of
impeller design and the noise characteristics with arrangement of silencer
in an axial turbo fan, Hanyang University, Seoul, Korea.
[7] Hirsch, C., 1988, "Numerical computation of internal and external flows",
Vol. 1, Wiley.
[8] Patankar, S. V., 1980, Numerical heat transfer and fluid flow,
McGraw-Hill, New York
[1] Railly, J. W., 1984, Computational Methods in Turbomachinery,
Mechanical Engineering Publications, London.
[2] Kim, K. Y., Kim, J. Y., and Chung, J. Y., 1997, Three-dimensional
analysis of the flow through an axial-flow fan, Journal of KSME, Vol. 21,
No. 4, pp. 541-542.
[3] Hur, N. K., Kim, U., Kang, S. H., 1999, A numerical study on cross flow
fan : effect of blade shapes on fan performance, Journal of. KFMA, Vol.
2, No.1, pp. 96-102.
[4] Jorjensen, R., 1976, Fan engineering, Buffalo, New York, pp. 217-222.
[5] Lakshminarayana, 1996, "Fluid dynamics and heat transfer of
turbomachinery", Wiley. Interscience, pp.358-362.
[6] Ryu, I. K., 2003, Studies on the airflow characteristics with revision of
impeller design and the noise characteristics with arrangement of silencer
in an axial turbo fan, Hanyang University, Seoul, Korea.
[7] Hirsch, C., 1988, "Numerical computation of internal and external flows",
Vol. 1, Wiley.
[8] Patankar, S. V., 1980, Numerical heat transfer and fluid flow,
McGraw-Hill, New York
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:58523", author = "Young-Kyun Kim and Tae-Gu Lee and Jin-Huek Hur and Sung-Jae Moon and Jae-Heon Lee", title = "Flow Characteristics Impeller Change of an Axial Turbo Fan", abstract = "In this paper, three dimensional flow characteristic was
presented by a revision of an impeller of an axial turbo fan for
improving the airflow rate and the static pressure. TO consider an
incompressible steady three-dimensional flow, the RANS equations
are used as the governing equations, and the standard k-ε turbulence
model is chosen. The pitch angles of 44°, 54°, 59°, and 64° are
implemented for the numerical model. The numerical results show that
airflow rates of each pitch angle are 1,175 CMH, 1,270 CMH, 1,340
CMH, and 800 CMH, respectively. The difference of the static
pressure at impeller inlet and outlet are 120 Pa, 214 Pa, 242 Pa, and 60
Pa according to respective pitch angles. It means that the 59° of the
impeller pitch angle is optimal to improve the airflow rate and the
static pressure.", keywords = "Axial turbo fan, Impeller, Blade, Pitch angle.", volume = "3", number = "2", pages = "199-4", }