排灌机械工程学报
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Journal of Drainage and Irrigation Machinery Engin  2012, Vol. 30 Issue (2): 153-156    DOI: 10.3969/j.issn.1674-8530.2012.02.006
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Analysis on flow field in Vshape valveless piezoelectric pump with single oscillatordual chamber
 HE  Xiu-Hua, LI  Fu, BI  Yu-Shi, DENG  Zhi-Dan, WANG  Jian
(School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China)
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Abstract A kind of Vshape valveless piezoelectric pump with single oscillatordual chamber was designed and its geometric model was created.Its internal flows were numerically analyzed by the dynamic mesh model in Fluent. The unsteady flow field in the piezoelectric pump was simulated and the pump unsteady characteristics, such as instantaneous pressure, velocity and flow rate in different periods of time, were obtained. If the dynamic characteristics of the twochip piezoelectric vibrator was effectively combined with the fluid dynamics, the estimated pump performance would agree with the theoretical characteristics of valveless piezoelectric pumps, it is suggested that the dynamic mesh model is feasible in the numerical simulations of flow in such a pump. The effects of driving frequency, amplitude of the piezoelectric vibrator, pump chamber height and location of the Vtube on the pump output performance were studied by means of considerable numerical simulations. The simulation results show that the maximum outlet flow is obtained at the driving frequency of 250 Hz. Moreover, the greater the amplitude of the piezoelectric vibrator, the higher the outlet flow. When a set of amplitude, pump chamber height and Vtube location are determined reasonably, the output of a piezoelectric pump can get the best performance.
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Articles by authors
HE Xiu-Hua
LI Fu
BI Yu-Shi
DENG Zhi-Dan
WANG Jian
Key wordspiezoelectric pump   flow field   output performance   numerical simulation   feasibility     
Received: 2011-11-18; Published: 2012-03-30
Cite this article:   
HE Xiu-Hua,LI Fu,BI Yu-Shi et al. Analysis on flow field in Vshape valveless piezoelectric pump with single oscillatordual chamber[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(2): 153-156.
 
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