排灌机械工程学报2012，Vol.30Issue(2)：153-156,166,5.DOI:10.3969/j.issn.1674-8530.2012.02.006
单振子双腔体V形管无阀压电泵的流场分析
Analysis on flow field in V-shape valve-less piezoelectric pump with single oscillator-dual chamber
摘要
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.关键词
压电泵/流场/输出性能/数值模拟/可行性Key words
piezoelectric pump/flow field/output performance/numerical simulation/feasibility分类
农业科技引用本文复制引用
何秀华,李富,毕雨时,邓志丹,王健..单振子双腔体V形管无阀压电泵的流场分析[J].排灌机械工程学报,2012,30(2):153-156,166,5.基金项目
江苏高校优势学科建设工程项目 （）
江苏大学高级专业人才科研启动基金资助项目(11JDG091) （11JDG091）
