Two way fluid structure interaction analysis of a valveless micropump by CFD

Ioan Călimănescu; Constantin L. Dumitrache; Lucian Grigorescu

doi:10.1117/12.2072124

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20 February 2015 Two way fluid structure interaction analysis of a valveless micropump by CFD

Ioan Călimănescu, Constantin L. Dumitrache, Lucian Grigorescu

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Proceedings Volume 9258, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VII; 92582D (2015) https://doi.org/10.1117/12.2072124
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies 2014, 2014, Constanta, Romania

Abstract

In the microfluid control system, a valve-less micropump is a necessary component. It has the ability to pump a wide variety of fluids automatically and accurately on a micro scale. The dynamic characteristics of a valve-less micropump influence the performance of the microfluid control system. Consequently, it is of great importance to be able to accurately predict the dynamic characteristics of micropumps for appropriate design and usage of the microfluid control system. In this paper, we describe a corrugated diaphragm valveless micropump approached from the Computational Fluid Dynamics point of view in which the Fluid Structure Interaction is based on the Two Way principle, meaning that the diaphragm is moving and the fluid (water like fluid) is sucked from the inlet and pushed back to the outlet using the nozzle effect. The technical solution of micropumps without valves is a very clever idea to replace the custom valves with nozzles, with the same effect but virtually without any components beside the inlet and the outlet nozzles. The paperwork is demonstrating via a complex simulation involving the structural-fluid interaction the nozzle effects and the functioning of this kind of micropumps.

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Ioan Călimănescu, Constantin L. Dumitrache, and Lucian Grigorescu "Two way fluid structure interaction analysis of a valveless micropump by CFD", Proc. SPIE 9258, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VII, 92582D (20 February 2015); https://doi.org/10.1117/12.2072124

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