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Abstract:
The structure and the operating principle of micro valveless
pump are presented. The computational Fluid dynamics approaches
are applied to achieve the time dependent flowfield within the
micro valveless pump under the typical driving frequency. The
experiments are carried out with different structural parameters
, driving frequencies and amplitudes of vibration and stiffness
of the driving diaphragm on of the pump are also experimentally
investigated. The effects of the structural parameter and
driving condition on the operation performance of the pump are
discussed in details. The relations of the pipe-periodicity.
Driving frequency diaphragm stiffness and flow parameters are
also presented. Finally an applicable suggestion is put forward
for improving designing and controlling scheme of the micro
valveless pump.
Key words: Micro
valveless pump MEMS Computational fluid dynamics
CLC No: TH137
TH39
国家自然科学基金(50175098,50175097)和教育部留学回国人员科研启动基金资助项目. Received 20011010,
received in revised form 20020218
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