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Insect-Inspired Micropump: Flow in a Tube with Local Contractions

Institute for Computational Medicine, Johns Hopkins University, Baltimore, MD 21218, USA
Academic Editors: Miko Elwenspoek and Joost Lötters
Micromachines 2015, 6(8), 1143-1156;
Received: 20 April 2015 / Revised: 26 July 2015 / Accepted: 6 August 2015 / Published: 14 August 2015
(This article belongs to the Special Issue Biomimetic Systems)
A biologically-inspired micropumping model in a three-dimensional tube subjected to localized wall constrictions is given in this article. The present study extends our previous pumping model where a 3D channel with a square cross-section is considered. The proposed pumping approach herein applies to tubular geometries and is given to mimic an insect respiration mode, where the tracheal tube rhythmic wall contractions are used/hypothesized to enhance the internal flow transport within the entire respiration network. The method of regularized Stokeslets-mesh-free computations is used to reconstruct the flow motions induced by the wall movements and to calculate the time-averaged net flow rate. The time-averaged net flow rates from both the tube and channel models are compared. Results have shown that an inelastic tube with at least two contractions forced to move with a specific time lag protocol can work as a micropump. The system is simple and expected to be useful in many biomedical applications. View Full-Text
Keywords: bioinspiration; insects; micropumping; biomedical applications bioinspiration; insects; micropumping; biomedical applications
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MDPI and ACS Style

Aboelkassem, Y. Insect-Inspired Micropump: Flow in a Tube with Local Contractions. Micromachines 2015, 6, 1143-1156.

AMA Style

Aboelkassem Y. Insect-Inspired Micropump: Flow in a Tube with Local Contractions. Micromachines. 2015; 6(8):1143-1156.

Chicago/Turabian Style

Aboelkassem, Yasser. 2015. "Insect-Inspired Micropump: Flow in a Tube with Local Contractions" Micromachines 6, no. 8: 1143-1156.

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