A Fluidic Diode and Its Application to a Valveless Micropump

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this work, topology optimization was used to design a fixed-geometry fluidic diode of high diodicity, defined as the ratio of pressure drop of reverse flow to forward flow. Next, the fluidic diode was used in a valveless micropump. A three-dimensional and unsteady numerical analysis of fluid flow inside the micropump with the optimized diode was conducted by Computational Fluid Dynamics (CFD). Performance of a nozzle-diffuser type diode in the valveless micropump was also evaluated under the same conditions, for comparison. Both types of micropumps were fabricated and tested. The results show that the micropump with the designed fluidic diode can reach a flow rate of up to 33.5 ml/h, which is consistent with the simulation results and 2.2 times that of the nozzle-diffuser type micropump.

Original languageEnglish (US)
Title of host publication34th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1005-1008
Number of pages4
ISBN (Electronic)9781665419123
DOIs
StatePublished - Jan 25 2021
Event34th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2021 - Virtual, Gainesville, United States
Duration: Jan 25 2021Jan 29 2021

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
Volume2021-January
ISSN (Print)1084-6999

Conference

Conference34th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2021
CountryUnited States
CityVirtual, Gainesville
Period1/25/211/29/21

Bibliographical note

Funding Information:
Portions of this work were conducted in the Minnesota Nano Center, which is supported by the National Science Foundation through the National Nano Coordinated Infrastructure Network (NNCI) under Award Number ECCS-1542202. This work was partially sponsored by Environment and Natural Resources Trust Fund (ENRTF) funding in Minnesota State. The numerical part of this work was carried out using computing resources at the University of Minnesota Supercomputing Institute.

Publisher Copyright:
© 2021 IEEE.

Keywords

  • Fluidic Diode
  • Topology Optimization
  • Valveless Pump

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