Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study on the Flow Characteristics of Piezoelectric Micropumps with Different Numerical Models

수치 모델에 따른 압전 구동방식 마이크로 펌프의 유동특성에 관한 연구

  • Jung, Jin (Department of Mechanical Engineering, Graduate School of Kyunghee University) ;
  • Kim, Dong-Hee (Department of Mechanical Engineering, Graduate School of Kyunghee University) ;
  • Kim, Chang-Nyeong (College of Advanced Technology, Kyunghee University)
  • 정진 (경희대학교 대학원 기계공학과) ;
  • 김동희 (경희대학교 대학원 기계공학) ;
  • 김창녕 (경희대학교 테크노공학대학)
  • Published : 2004.08.01
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Abstract

A numerical analysis has been conducted for flow characteristics of piezoelectric micropumps. In the present study, FSI (Fluid-Structure Interaction) model and grid deform model have been employed for each of two different geometries of the micropumps with two different frequencies in the piezoelectric diffuser/nozzle based micropumps. The displacement of piezo disk and flow rates have been closely examined at the inlet and outlet. It has been found that the motion of the piezo disk investigated with FSI model is not in accordance with that with grid deform model. The results show that the time averaged flow rate calculated with FSI model is larger than that with grid deform model. This study presents the performance analysis of piezoelectric micropumps with two different numerical models for different types of pumps.

Keywords

References

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