Enhancing flow characteristic and system performance in micropump with heart valve mechanical behavior
ISSN: 0264-4401
Article publication date: 19 December 2022
Issue publication date: 14 February 2023
Abstract
Purpose
This study aims to solve the problems of low flow rate and low efficiency of micropumps in high-frequency applications. This micropump system was proposed to meet the requirements of 1–5 ml/min for microthrusters or drug delivery devices.
Design/methodology/approach
In this paper, a comprehensive analysis indicator and numerical procedure were disclosed and used to demonstrate the fluid dynamic characteristics and performance of a micropump. Accordingly, the reliability of the two-way coupling calculation was ensured through mutual verification of the real structure and the numerical system.
Findings
The research results indicate that the Polydimethylsiloxane (PDMS) microchannel can realize the contraction and expansion mechanism, allowing the fluid to generate different levels of pressure gradient during the working stroke and also enhancing the characteristics of energy consumption and storage of the flow field.
Originality/value
The pressure gradient between the fluid and PDMS microchannel can facilitate the improvement of the fluid backflow in a micropump. Therefore, in terms of performance improvement, the PDMS micropump increased the maximum backflow and optimum efficiency by approximately 50 and 90%, respectively.
Keywords
Citation
Lai, H.-Y. and Kang, J.-H. (2023), "Enhancing flow characteristic and system performance in micropump with heart valve mechanical behavior", Engineering Computations, Vol. 40 No. 1, pp. 1-21. https://doi.org/10.1108/EC-02-2022-0091
Publisher
:Emerald Publishing Limited
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