Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지

Numerical Investigation on Frictional Pressure Loss in a Perfect Square Micro Channel with Roughness and Particles

  • Han Dong-Hyouck (Research Institute of Engineering & Technology, Korea University) ;
  • Lee Kyu-Jung (Department of Mechanical Engineering, Korea University)
  • Published : 2006.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

A numerical study is performed to investigate the effect of inner surface roughness and micro-particles on adiabatic single phase frictional pressure drop in a perfect square micro channel. With the variation of particles sizes (0.1 to $1{\mu}m$) and occupied volume ratio (0.01 to 10%) by particles, the Eulerian multi-phase model is applied to a $100{\mu}m$ hydraulic diameter perfect square micro channel in laminar flow region. Frictional pressure loss is affected significantly by particle size than occupied volume ratio by particles. The particle properties like density and coefficient of restitution are investigated with various particle materials and the density of particle is found as an influential factor. Roughness effect on pressure drop in the micro channel is investigated with the consideration of roughness height, pitch, and distribution. Additionally, the combination effect by particles and surface roughness are simulated. The pressure loss in microchannel with 2.5% relative roughness surface can be increased more than 20% by the addition of $0.5{\mu}m$ diameter particles.

Keywords

References

  1. Bracco, F. V., 1985, 'Modeling of Engine Sprays,' SAE Technical Paper Series 850394
  2. Brutin, D. and Tadrist, L., 2003, 'Experimental Friction Factor of a Liquid flow In Microtubes,' Physics of Fluids, Vol. 15, No.3, pp. 653-661 https://doi.org/10.1063/1.1538612
  3. CD Adapco Group, 2004, Methodology, STARCD ver. 3.22, CD Adapco, London, Chap. 13, pp.13.1-13.9
  4. Croce, G. and D'Agaro, P., 2004, 'Numerical Analysis of Roughness Effect on Microtube Heat Transfer,' J. Superlattices and Microstructures, Vol. 35, pp. 601-616 https://doi.org/10.1016/j.spmi.2003.09.014
  5. Ding, J. and Gidaspow, D., 1990, Turbulence in Liquid and Phase of a Uniform Bubbly Air-Water Flow, J. Fluid Mech., Vol. 222, pp.95-118 https://doi.org/10.1017/S0022112091001015
  6. Ghiaasiaan, S. M. and Laker, T. S., 2001, 'Turbulent Forced Convection in Microtubes,' Int. J. of Heat and Mass Transfer, Vol. 44, pp.2777-2782 https://doi.org/10.1016/S0017-9310(00)00320-3
  7. Gosman, A. D., Issa, R. I., Lekakou, C., Looney, M. K. and Politis, S., 1992, Multidimensional Modelling of Turbulent Two-Phase Flows in Stirred Vessels, AIChE Journal, Vol. 38, No. 12, pp. 1946-1956 https://doi.org/10.1002/aic.690381210
  8. Kedzierski, M. A., 2003, 'Micro Channel Heat Transfer, Pressure Drop And macro Prediction Methods,' Keynote for 2nd Int. Conference on Heat Transfer, Fluid Mechanics, and Thermodynamics, June 23-26, Victoria Falls, Zambia
  9. Lelea, D., Nishio, S. and Takano, K., 2004, 'The Experimental Research on Microtube Heat Transfer and Fluid Flow of Distilled Water,' Int. J. of Heat and mass Transfer, Vol. 47, pp. 2817-2830 https://doi.org/10.1016/j.ijheatmasstransfer.2003.11.034
  10. Liu, D. and Garirnella, S. V., 2004, Investigation of Liquid Flow in Microchannels, J. of Thermophysics and Heat transfer, Vol. 18, No.1, pp.65-72 https://doi.org/10.2514/1.9124
  11. Liu, M. Lin, M. C., Huang, I. and Wang, C., 2006, Enhancement of Thermal Conductivity with CuO for Nanofluids, Chem. Eng. Technol., Vol. 29, No.1, pp. 72-77 https://doi.org/10.1002/ceat.200500184
  12. Mala, G. M. and Li, D., 1999, 'Flow Characteristics of Water in Microtubes,' Int. J. of Heat and Fluid Flow, Vol. 20, pp. 142-148 https://doi.org/10.1016/S0142-727X(98)10043-7
  13. Rawool, A. S., Sushanta, K., Mitra, S. and Kandlikar G., 2005, Numerical Simulation of Flow Through Microchannels with Designed Roughness, Microfluid Nanofluid, Springer-Verlag, DOI 10.1007/s10404-00500064-5
  14. Schiller, L. and Naumann, A., 1933, 'Ber Die Grundlegenden Berechnungen Bei Der Schwerkraftaufbereitung,' VDI Zeits., Vol. 77, No. 12, pp.318-320
  15. Shah, R. K. and London, A. L, 1978, 'Laminar Flow Forced Convection in Ducts,' Supplement 1 to Advances in Heat Transfer, eds. Irvine, T.F., Hartnett, J. P., Academic Press, New York
  16. Xu, B., Ooi, K. T., Mavriplis C. and Zaghloul, M. E., 2003, 'Evaluation of Viscous Dissipation in Liquid Flow in Microchannels,' J. Micromech. Microeng, Vol. 13, pp. 53-57 https://doi.org/10.1088/0960-1317/13/1/308
  17. Xuan, Y. and Li, Q., 2003, Investigation on Convective Heat Transfer and Flow Features of Nanofluids, J. of Heat Transfer, Vol. 125, pp. 151-155 https://doi.org/10.1115/1.1532008
  18. van Wachem, B., Schouten, J. C., Krishna, R. and van den BIEEk, C. M., 1998, 'Eulerian Simulations of Bubbling Behaviour in Gas-Solid Fluidized Beds,' Computers Chem. Eng., Vol. 22, Supple., pp. S299-S306 https://doi.org/10.1016/S0098-1354(98)00068-4