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  1. Numerical study of AN ion injection EHD micropump
Numerical study of AN ion injection EHD micropump
644 viewed

Numerical study of AN ion injection EHD micropump

Ghazi, R

Numerical study of AN ion injection EHD micropump

Ghazi, R ; Sharif University of Technology

644 Viewed
  1. Type of Document: Article
  2. DOI: 10.1115/ICNMM2009-82063
  3. Abstract:
  4. The purpose of this study is to carry out a numerical investigation of injection type EHD pumps. To this end, the flow is considered laminar, steady and incompressible flow. The flow model is based on the assumptions that the fluid is Newtonian and the fluid properties are constant. The results show that all of the ions emitted from emitter are not collected by next collector electrode, but some of this injected ions move to the previous one, which causes back flow. Although this back flow is smaller than net pumping flow but it would reduce the net flow. Because of existence of this back flow, finding the optimum distance of electrodes from each other is necessary. This study shows that when the distance from emitter electrode to next collector is half of its distance from previous one, the maximum flow rate will be achieved. The results also show that flow rate reduces linearly as the pressure increases. Copyright © 2009 by ASME
  5. Keywords:
  6. Back flow ; EHD micropump ; Emitter electrodes ; Flow model ; Fluid property ; Injection type ; Ion injection ; Maximum flow rate ; Newtonians ; Numerical investigations ; Numerical studies ; Pressure increase ; Combustors ; Incompressible flow ; Ions ; Microchannels ; Pumps
  7. Source: Proceedings of the 7th International Conference on Nanochannels, Microchannels, and Minichannels 2009, ICNMM2009, 22 June 2009 through 24 June 2009 ; Issue PART A , 2009 , Pages 179-185 ; 9780791843499 (ISBN)
  8. URL: http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1626459