Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Numerical Study on the Internal Flow Characteristics and Pumping Performance of a Piezoelectric-based Micropump with Electromagnetic Resistance

전자기 저항을 이용한 압전 구동방식 마이크로 펌프의 내부유동 특성과 펌핑성능에 대한 수치해석적 연구

  • An, Yong-Jun (Department of Mechanical Engineering, Graduate School, Kyung Hee Univ.) ;
  • Oh, Se-Hong (Department of Mechanical Engineering, Graduate School, Kyung Hee Univ.) ;
  • Kim, Chang-Nyung (Department of Mechanical Engineering, Kyung Hee Univ.)
  • 안용준 (경희대학교 대학원 기계공학과) ;
  • 오세홍 (경희대학교 대학원 기계공학과) ;
  • 김창녕 (경희대학교 기계공학과)
  • Received : 2010.03.26
  • Accepted : 2010.07.26
  • Published : 2010.10.01
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Abstract

In this study a numerical analysis has been conducted for the flow characteristics and pumping performance of a piezoelectric-based micropump with electromagnetic resistance exerted on electrically conducting fluid. Here, electromagnetic resistance is alternately applied at the inlet and outlet with alternately applied magnetic fields in association with the reciprocal membrane motion of the piezoelectric-based micropump. A model of Prescribed Deformation is used for the description of the membrane motion. The internal flow characteristics and pumping performance are investigated with the variation of magnetic flux density, tube size, displacement of membrane and the frequency of the membrane. It turns out that the current micropump has a wide range of pumping flow rate compared with diffuser-nozzle based micropumps.

Keywords

References

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