Journal article Open Access

CFD Analysis of a Centrifugal Fan for Performance Enhancement using Converging Boundary Layer Suction Slots

K. Vasudeva Karanth; N. Yagnesh Sharma

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    <subfield code="x">Boyce, M.P., Gas Turbine Engineering Hand Book, Gulf Professional
Publishing, Third Edition, USA, 2006, pp. 238 - 239.</subfield>
  <datafield tag="999" ind1="C" ind2="5">
    <subfield code="x">Reacock, R. E., "Boundary-Layer Suction to Eliminate Corner
Separation in Cascades of Aerofoils", Research report, University
Engineering Department, Cambridge, 1965.</subfield>
  <datafield tag="999" ind1="C" ind2="5">
    <subfield code="x">Khan, M.M.S., Cornelius, K.C. and Tassa, Y., "Effect of suction on
boundary-layer flow over a 2-D slot", American Institute of Aeronautics
and Astronautics, Aerospace Sciences Meeting, 20th, Orlando, FL, Jan.
11-14, 1982, 11 p</subfield>
  <datafield tag="999" ind1="C" ind2="5">
    <subfield code="x">Seal, C.V. and Smith, C.R., "The control of turbulent end-wall boundary
layers using surface suction", Experiments in Fluids, Springer
Publications, Volume 27, Number 6 , November, 1999, pp. 484-496</subfield>
  <datafield tag="999" ind1="C" ind2="5">
    <subfield code="x">Raghunathan, S. and Cooper, R.K., "Passive Boundary Layer Control
with Slots in Short Diffusers", ASME Journal of Fluids Engineering, 3,
Vol. 122, 2000, pp. 177-179.</subfield>
  <datafield tag="999" ind1="C" ind2="5">
    <subfield code="x">Wursthorn, S. and Schnerr, G.H., "Numerical investigations of
cavitation control in pumps", Journal of Applied Mathematics and
Mechanics, vol. 80, 2000, pp. S663-S664</subfield>
  <datafield tag="999" ind1="C" ind2="5">
    <subfield code="x">Hubrich, K., Bolcs, A. and Ott, P., "Boundary Layer Suction via a Slot
in a Transonic Compressor: Numerical Parameter Study and First
Experiments", Proceedings of ASME Turbo Expo 2004 Power for Land,
Sea, and Air GT2004-53758, 2004, Austria</subfield>
  <datafield tag="999" ind1="C" ind2="5">
    <subfield code="x">Shojaefard, M.H., Noorpoor, A.R, Avanesians, A. and Ghaffarpour, M.,
"Numerical Investigation of Flow Control by Suction and Injection on a
Subsonic Airfoil", American Journal of Applied Sciences, Science
Publications, 2 (10), 2005, pp. 1474-1480.</subfield>
  <datafield tag="999" ind1="C" ind2="5">
    <subfield code="x">Atik, H., Kim, C.Y., Van-Dommelen, L. and Walker, J.D.A.,
"Boundary-layer Separation Control on a Thin Airfoil using Local
Suction", Journal of Fluid Mechanics Cambridge University Press, 535
, 2005, pp. 415-443.
[10] Gajjar, J.S.B. and Smith, F.T., "Vortices and flow reversal due to suction
slots", Philosophical Transactions of the Royal Society, Vol. 363, No.
1830, 2005, pp. 1199 - 1208.
[11] Dovgal, A. and Sorokin, A., "Application of flow suction for controlling
the shedding of large-scale vortices at boundary-layer separation",
Journal of Applied Mechanics and Technical Physics, Volume
47, Number 4, 2006, pp. 510-514
[12] Song, Y., Chen, F., Yang J. and Wang, Z., "A Numerical Investigation
of Boundary Layer Suction in Compound Lean Compressor Cascades",
ASME Journal of Turbomachinery, 5, Volume 128, Issue 2, 2006, pp.
357 - 366.
[13] Atik, H. and van Dommelen, L., "Autogenous Suction to Prevent
Laminar Boundary-Layer Separation". Journal of Fluids Engineering 1,
Vol. 130, Issue 1, 2008, 011201 (8 pages)
[14] Gbadebo, S.A., Cumpsty, N.A. and Hynes T.P., "Control of Three-
Dimensional Separations in Axial Compressors by Tailored Boundary
Layer Suction", ASME Journal of Turbomachinery , 1, Volume 130,
Issue 1, 2008, 011004 (8 pages)
[15] Fatsis, A., Pierret, S. and Van den Braembussche, R., "Threedimensional
unsteady flow and forces in centrifugal impellers with
circumferential distortion of the outlet static pressure", ASME Journal of
Turbomachinery, 119, 1997, pp. 94-102.
[16] Sorokes, J.M., Borer, J.C. and Koch, J.M., "Investigation of the
circumferential static pressure non-uniformity caused by centrifugal
compressor discharge volute", 98 GT 326, International Gas Turbine &amp;
Aeroengine Congress &amp; Exhibition, Stockholm, 1998, Sweden,
[17] Hillewaert, K. and Van den Braembussche, R.A., "Numerical simulation
of impeller-volute interaction in centrifugal compressors", ASME
Journal of Turbomachinery, 121, 1999, pp. 603-608.
[18] Shi, F. and Tsukamoto, H., "Numerical Study of Pressure Fluctuations
Caused by Impeller-Diffuser Interaction in a Diffuser Pump Stage",
Transactions of the ASME, 9, Vol. 123, 2001, pp. 466 - 474.
[19] Sofiane, K., Smaïne, K., Farid, B. and Robert, R., "Flow Study in the
Impeller-Diffuser Interface of a Vaned Centrifugal Fan", ASME Journal
of Fluid Engineering, 5, vol. 127, 2005, pp. 495 - 502.
[20] Meakhail, T. and Par,k S.O., "A Study of Impeller-Diffuser-Volute
Interaction in a Centrifugal Fan", ASME Journal of Turbo machinery,
127, 2005, pp. 84 - 90.
[21] Fluent 6.3, Fluent Inc., 2006.
[22] Patankar, S.V., Numerical Heat Transfer and Fluid Flow, Tailor and
Francis, 1980, pp. 90-92.</subfield>
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    <subfield code="a">Generally flow behavior in centrifugal fan is observed
to be in a state of instability with flow separation zones on suction
surface as well as near the front shroud. Overall performance of the
diffusion process in a centrifugal fan could be enhanced by
judiciously introducing the boundary layer suction slots. With easy
accessibility of CFD as an analytical tool, an extensive numerical
whole field analysis of the effect of boundary layer suction slots in
discrete regions of suspected separation points is possible. This paper
attempts to explore the effect of boundary layer suction slots
corresponding to various geometrical locations on the impeller with
converging configurations for the slots. The analysis shows that the
converging suction slots located on the impeller blade about 25%
from the trailing edge, significantly improves the static pressure
recovery across the fan. Also it is found that Slots provided at a
radial distance of about 12% from the leading and trailing edges
marginally improve the static pressure recovery across the fan.</subfield>
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