Automotive Science and Engineering
Iran University of Science & Technology
Tue, Jul 15, 2025
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Volume 15, Issue 2 (6-2025)
ASE 2025, 15(2): 4755-4764 |
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Karmozdi M. Analytical Model for Estimating the Motion of the Liquid Metal Drop-let in Electromagnetic Micropump. ASE 2025; 15 (2) :4755-4764
URL: http://ijae.iust.ac.ir/article-1-712-en.html
URL: http://ijae.iust.ac.ir/article-1-712-en.html
Analytical Model for Estimating the Motion of the Liquid Metal Drop-let in Electromagnetic Micropump
Department of Mechanical Engineering, K. N. T. University of Technology, Tehran, 1999143344, Iran
Abstract: (639 Views)
The liquid metal droplets in the mercury magnetic reciprocating micropump are actuated by Lorentz force and reciprocated inside some sub-channels. The droplets in sub-channel act as pistons to pump the working fluid. The initial step in establishing the performance of the mercury magnetic reciprocating micropumps is to study the motion of droplet inside the channel. The extraction of the analytic equation governing the droplet motion inside the channel is complicated due presence of electromagnetic fields and three dimensional effects of the flow. Further, the existence of a pumped fluid in contact with the droplet and the adhesion force due to small dimensions are considered as the other reasons. In this study, the forces operating on the droplet were figured out by the Lagrangian approach and lumped mass assumption for the droplet. Accordingly, forces less than 5% of the actuation force were eliminated from the motion equation of droplet employing dimensional analysis. The simplified equation was presented as an ordinary differential equation and solved numerically. In addition to the analytic solution, the issue was experimentally investigated for a case study. The analytic and empirical results accord well with one another. The method pointed out in this study can be applied to predict the droplet motion in various microsystems.
Type of Study: Research |
Subject:
Automotive electrical systems
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