Analysis of the flow rate characteristics of valveless piezoelectric pump with fractal-like Y-shape branching tubes

Huang, Jun; Zhang, Jianhui; Wang, Shouyin; Liu, Weidong

doi:10.3901/cjme.2014.03.628

Cited by 33 publications

(18 citation statements)

References 15 publications

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“…The flow rate in the reverse flow is always higher than that of the forward flow. Then substituting the results into equation (1), (2), the resistance coefficient ξ and the impedance ratio ε is obtained, shown in Fig.4 (b). As the pressure drops increases, the forward and reverse flow resistance coefficients ξ increase, and the reverse flow resistance coefficient ξ R remains greater than that of the forward flow.…”

Section: Numerical Simulationmentioning

confidence: 99%

“…Valveless piezoelectric pumps driven by the inverse piezoelectric effect of piezoelectric materials has the advantages of simple structure, high reliability and miniaturization, which is widely applied in cell transmission, fuel cell and chip cooling. [1][2][3] Valveless piezoelectric pumps mostly utilize flow resistance differential tube to replace the valve. The common flow resistance differential tube is diffuser/nozzle, Tesla tube, and Y-shaped tube [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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Design and Testing of a Valveless Piezoelectric Pump with Conical Vortex Diodes

Zou

Huang

2020

MATEC Web Conf.

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The valveless piezoelectric pump delivers fluid based on the difference of flow resistance of internal tube. In this paper, a vortex diode with conical tangential tube is proposed, which possesses the great characteristic of reverse cut-off, and the analysis of the forward and reverse flow resistance of the conical vortex diode is verified by finite element analysis. Then, a valveless piezoelectric pump with conical vortex diodes as the internal channel is designed, and the prototype is manufactured. The results of the output performance experiment show that the maximum output flow rate of the valveless piezoelectric pump is 10.44 g/min at the drive frequency of 45Hz, and the maximum output pressure is 560 Pa at the drive frequency of 35Hz. The proposal of the valveless piezoelectric pump provides a good reference for more new types of valveless piezoelectric pumps.

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Section: Numerical Simulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Testing of a Valveless Piezoelectric Pump with Conical Vortex Diodes

Zou

Huang

2020

MATEC Web Conf.

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“…The theoretical pumping flow rate was calculated according to Eq. (7). The diameter of the piezoelectric vibrator is 50 mm.…”

Section: Comparisons Of Pump Flow Ratesmentioning

confidence: 99%

“…It also has wide potential application in medical, health, mechanical, and electrical systems that require the miniaturization of mechanical components [5]. Moreover, the valveless piezoelectric pump has unique advantages, especially in the integrated piezoelectric mixing and conveying field for microflow liquid [6] and [7].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Flow Field and Pumping Performance for a Valveless Piezoelectric Pump with a Hemisphere-segment Group

et al. 2015

SV-JME

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The pumping and mixing performance of a valveless piezoelectric pump were proposed and studied. A hemisphere-segment group that was fixed in the pump played the role of a valve. Based on the theoretical analysis of the pumping performance, the changes of the fluid velocity field, pressure difference, the coefficient of resistance and flow rate were simulated with FLUENT. Simulation results revealed the relationships among the pressure field, flow rates, row and column numbers, and row and column intervals of the hemisphere-segment group. The simulation results indicated that increasing row and column numbers, increasing row intervals, and decreasing column intervals could all increase the flow resistance difference in pump flow field and thus increased the flow rate. It was also found that the pumping effect was significantly improved by increasing row number than increasing column number; the increasing of row and column intervals could increase the size and strength of the vortex, and then improve the mixing and stirring performance of this pump. Finally, simulation results were tested and verified through pump flow-rate experiments.

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“…Hence, HUANG, et al [18] , proposed the valveless piezoelectric pump with fractal-like Y-shape branching tubes(VPPFYT) to overcome the above mentioned shortcomings. Soon after, our research group analyzed the flow resistances of the fractal-like Y-shape branching tubes(FYBT) with different fractal dimensions of diameter distribution and the flow rate characteristics of VPPFYT [19][20] . The valveless piezoelectric pump with fractal-like Y-shape branching tubes is the combination of tubes and chamber.…”

Section: Introduction mentioning

confidence: 99%

3D FEM analyses on flow field characteristics of the valveless piezoelectric pump

Huang

Zhang

Shi

et al. 2016

Chin. J. Mech. Eng.

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Due to the special transportation and heat transfer characteristics, the fractal-like Y-shape branching tube is used in valveless piezoelectric pumps as a no-moving-part valve. However, there have been little analyses on the flow resistance of the valveless piezoelectric pump, which is critical to the performance of the valveless piezoelectric pump with fractal-like Y-shape branching tubes. Flow field of the piezoelectric pump is analyzed by the finite element method, and the pattern of the velocity streamlines is revealed, which can well explain the difference of total flow resistances of the piezoelectric pump. Besides, simplified numerical method is employed to calculate the export flow rate of piezoelectric pump, and the flow field of the piezoelectric pump is presented. The FEM computation shows that the maximum flow rate is 16.4 mL/min. Compared with experimental result, the difference between them is just 55.5%, which verifies the FEM method. The reasons of the difference between dividing and merging flow resistance of the valveless piezoelectric pump with fractal-like Y-shape branching tubes are also investigated in this method. The proposed research provides the instruction to design of novel piezoelectric pump and a rapid method to analyse the pump flow rate.

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Analysis of the flow rate characteristics of valveless piezoelectric pump with fractal-like Y-shape branching tubes

Cited by 33 publications

References 15 publications

Design and Testing of a Valveless Piezoelectric Pump with Conical Vortex Diodes

Design and Testing of a Valveless Piezoelectric Pump with Conical Vortex Diodes

Analysis of Flow Field and Pumping Performance for a Valveless Piezoelectric Pump with a Hemisphere-segment Group

3D FEM analyses on flow field characteristics of the valveless piezoelectric pump

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