Numerical Analysis about the Flow Characteristics for Different Figures of Inlet and Outlet in Diffuser/Nozzle based on Piezoelectric Micropump

디퓨져/노즐을 이용한 압전형 마이크로 펌프의 입 . 출구 형상 차이에 따른 유동특성에 관한 수치해석적 연구

The present study has been carried out to investigate the pumping characteristics for different figures of inlet and outlet in diffuser/nozzle based on piezoelectric micropump. Piezoelectric micropump system consists of several parts like a pumping chamber, diffuser/nozzle, piezoelectric element and tubes. Parts of the micropump connected with diffuser/nozzle and tubes have been analyzed.. The magnified parts have been classified into two different models based on their resistance. These models have been further classified into six models with each one having three different angles at the magnified parts. Each model has been compared and analyzed using the simulation tool, namely, CFD-ACE depending on their flow rates and characteristics.