Journal ArticleDOI
Simulation and optimization of a piezoelectric micropump for medical applications
TLDR
In this paper, a valveless micropump excited by a piezoelectric actuator for medical applications was designed and analyzed using ANSYS software to investigate the effects of the geometrical dimensions on the micropumps characteristics and its efficiency.Abstract:
We designed a valveless micropump excited by a piezoelectric actuator for medical applications. The complete electric–fluid–solid coupling model is built upon using ANSYS software (Canonsburg, PA) to investigate the behaviors of the micropump. The effects of the geometrical dimensions on the micropump characteristics and its efficiency are analyzed. The simulation results show that there is an optimal thickness of the piezoelectric layer to obtain a large pump flow, and that this optimal thickness is affected by the material and the thickness of the pump membrane. To enhance the performance of the micropump, some important diffuser parameters, such as the diffuser length, the diffuser angle, and the neck width, should be optimized. However, the variations of the diffuser’s geometrical dimensions do not affect the optimal thickness of the piezoelectric layer.read more
Citations
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Steady and unsteady flow analysis in microdiffusers and micropumps: a critical review
TL;DR: The present review reveals that there are many possible areas of research in the field of steady and unsteady flows through microdiffusers and micropumps in order to understand the effects of all important design parameters on the performance of these devices.
Journal ArticleDOI
Analytical modeling, simulations and experimental studies of a PZT actuated planar valveless PDMS micropump
TL;DR: In this paper, a piezoelectrically actuated PDMS-based planar valveless micropump is proposed to achieve a maximum flow rate of 20μL/min and back pressure of 220Pa.
Journal ArticleDOI
Efficient microfluidic rectifiers for viscoelastic fluid flow
TL;DR: In this article, a new type of microfluidic rectifier was proposed to achieve high anisotropic flow resistance between the two flow directions, which is able to operate efficiently under creeping flow conditions.
Journal ArticleDOI
A review of recent studies on piezoelectric pumps and their applications
TL;DR: This work highlights the development history and focuses particularly on the research of piezoelectric pumps in four aspects: configuration design, working mode, optimization and application, respectively, and attempts to provide both a guidance for piezOElectric pump researchers on improving their output performances and a resource for those outside the field who wish to identify the best piezoeselectric pump for a particular application.
Journal ArticleDOI
Advances in Valveless Piezoelectric Pump with Cone-shaped Tubes
TL;DR: A review of the development of valveless piezoelectric pump with cone-shaped tube chronologically, which have widely potential application in biomedicine and micro-electro-mechanical systems because of its novel principles and deduces the research direction in the future is presented in this paper.
References
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Journal ArticleDOI
A valveless diffuser/nozzle-based fluid pump
Erik Stemme,Göran Stemme +1 more
TL;DR: A new valveless fluid pump has been designed and tested that consists of two fluid diffuser/nozzle elements on each side of a chamber volume with an oscillating diaphragm that creates a one-way fluid flow.
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A ferrofluidic magnetic micropump
TL;DR: In this article, a microfluidic pump that uses magnetic actuation to push fluid through a microchannel is described, which relies on the use of magnetically-actuated plugs of ferrofluid, a suspension of nanosize ferromagnetic particles.
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A bidirectional silicon micropump
TL;DR: In this article, a bidirectional silicon micropump is presented, which consists of an electrostatically actuated diaphragm and two passive check valves with a first mechanical resonance frequency between 1 and 2 kHz.
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Design and simulation of a novel electrostatic peristaltic micromachined pump for drug delivery applications
TL;DR: In this paper, a novel electrostatic micromachined pump for medical applications is designed and simulated, and the proposed structure for the micropump consists of an input and an output port, three membranes, three active membrane valves, microchannels, and three electrostatic actuation systems.
Journal ArticleDOI
A Valve-Less Diffuser Micropump for Microfluidic Analytical Systems
TL;DR: The results show that the valve-less micropump successfully pumps fluids within the viscosity range 0.001–0.9 Ns/m2 and is self-priming and insensitive to particles and bubbles present in the pumped media.