Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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NUMERICAL STUDY OF TURBULENT FLOW IN A INTAKE PART OF VACUUM CLEANER WITH ROLLING BRUSH

회전브러시가 장착된 진공청소기 흡입장치의 난류유동에 대한 수치해석

  • Park, Tae-Seon (Dept. of Mechanical Engineering, Kyungpook Nat'l Univ.)
  • 박태선 (경북대학교 기계공학부)
  • Received : 2012.03.06
  • Accepted : 2012.05.14
  • Published : 2012.06.30
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Abstract

Turbulent flows in a intake part of vacuum cleaner are studied by RANS simulations. The governing equations are solved by the SIMPLE algorithm based on the finite volume method of the unstructured grid system. The predicted results show that the suction performance is closely related to the variation of flow structure in the intake part. In order to investigate for the cleaning of bedclothes and carpet without sticking, several design changes are applied. The introduction of a solid cylinder in the intake part changes vortical structures significantly. Based on this result, a new design with spiral brushes is proposed. The design shows a good behavior for the suction performance and the flow control.

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References

  1. 2007, Park, T. S., "Flow Structures of Roller Brush in a Suction Device for Mites,"(in Korean) Technical Innovation Project of Small and Medium Business Administration.
  2. Fluent Inc. (www.fluentusers.com)
  3. 1974, Launder, B. E. and Spalding, D. B., "the numerical computation of turbulent flows," Computer Methods in Applied Mechanics and Engineering, Vol.3, pp.269-289. https://doi.org/10.1016/0045-7825(74)90029-2
  4. 1995, Shih, T. H., Liou, W. W., Shabbir, A., Yang, Z. and Zhu, J., "A New $k-\epsilon$ Eddy Viscosity Model for High Reynolds Number Turbulent Flows - Model Development and Validation," Computers & Fluids, Vol.24(3), p.227-238. https://doi.org/10.1016/0045-7930(94)00032-T
  5. 1975, Launder, B. E., Reece, G. J. and Rodi, W., "Progress in the Development of a Reynolds-Stress Turbulence Closure," J. Fluid Mech., Vol.68, p.537-566. https://doi.org/10.1017/S0022112075001814