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Proceedings Paper

Efficient fluid transport by a bionically inspired micro-flapper: fluidic investigations using fully coupled finite element simulation
Author(s): R. Behlert; G. Schrag; G. Wachutka
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Paper Abstract

We studied the fluid transport by a bionically inspired micro-flapper fabricated in piezoelectric thin-film technology. The undulatory, wave-like motion of the proposed design is supposed to generate vortex chains in the surrounding fluid resulting in a directed jet stream and, hence, enhanced mass convection and heat transport inside the fluid. Fully-coupled finite element (FE) simulations have been carried out to investigate the fluid transport induced by such an excitation in order to assess the efficiency of the concept. The results show that there is a significant higher net flow for undulation compared to the simple, resonant-like up-and-down motion of the flap, which corroborates the feasibility of the concept.

Paper Details

Date Published: 2 June 2017
PDF: 10 pages
Proc. SPIE 10246, Smart Sensors, Actuators, and MEMS VIII, 102460A (2 June 2017); doi: 10.1117/12.2266252
Show Author Affiliations
R. Behlert, Technische Univ. München (Germany)
G. Schrag, Technische Univ. München (Germany)
G. Wachutka, Technische Univ. München (Germany)

Published in SPIE Proceedings Vol. 10246:
Smart Sensors, Actuators, and MEMS VIII
Luis Fonseca; Mika Prunnila; Erwin Peiner, Editor(s)

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