Browse > Article
http://dx.doi.org/10.6112/kscfe.2011.16.1.090

NAVIER-STOKES SIMULATION OF A VISCOUS MICRO PUMP WITH A SPIRAL CHANNEL  

Seo, J.H. (영남대학교 대학원 기계공학과)
Kang, D.J. (영남대학교 기계공학부)
Publication Information
Journal of computational fluids engineering / v.16, no.1, 2011 , pp. 90-95 More about this Journal
Abstract
The Navier-Stokes equations are solved to study the flow characteristics of a micro viscous pump. The viscous micropump is consisted of a stationary disk with a spiral shaped channel and a rotating disk. A simple geometrical model for the tip clearance is proposed and validated by comparing computed flow rate with corresponding experimental data. Present numerical solutions show satisfactory agreement with the corresponding experimental data. The tip clearance effect is found to become significant as the rotational speed increases. As the pressure load increases, a reversed flow region is seen to form near the stationary disk. The height of the channel is shown to be optimized in terms of the flow rate for a given rotational speed and pressure load. The optimal height of the channel becomes small as the rotational speed decreases or the pressure load increases. The flow rate of the pump is found to be in proportion to the width of channel.
Keywords
micropump; viscous pump; tip clearance; flow rate; pressure load;
Citations & Related Records
연도 인용수 순위
  • Reference
1 2003, Kilani, M.I., Galambos, P.C., Haik, Y.S., and Chen, C.J., "Design and Analysis of a Surface Micromachined Spiral-Channel Viscous Pump," ASME J. Fluids Eng, Vol.123, pp.339-344.
2 1990, Bart, S.F., Tavrow, L.S., Mehregany, M., and Lang, J. H., "Microfabricated Electrohydrodynamic Pumps," Sensors and Actuators A, Vol.21, pp.193-197.   DOI   ScienceOn
3 1991, Moroney, R.M., White, R.M., and Howe, R.T., "Ultrasonically Induced Microtransport," Proceedings IEEE MEMS 91 (Nara, Japan), IEEE New York, pp.278-282.
4 1996, Sen, M., Wajerski, D., and Gad-el-hak, M.., " A Novel Pump for MEMS Applications," J. of Fluid Engineering, ASME, Vol.118, pp.624-627.
5 1988, Van Lintel, H.T.G., Van de Pol, F.C.M., and Bouwstra, S., "A Piezoelectric Micropump Based on Micromachining of Silicon," Sensors and Actuators, Vol.15, pp.153-167.   DOI   ScienceOn
6 1972, Taylor, Sir G., "Low Reynolds Number Flows," Illustrated Experiments in Fluid Mechanics, National Committee for Fluid Mechanics Films, M.I.T. Press, Cambridge, MA., pp.47-53.
7 2006, Kilani, M.I., Salaymeh, A., and Al-halhouli, A.T., "Effect of Channel Aspect Ratio on the Flow Performance of a Spiral-Channel Viscous Micropump," ASME J. Fluids Eng, Vol.128, pp.618-627.   DOI   ScienceOn