Passive viscous flow selection via fluid-induced buckling

We study the buckling of a clamped beam immersed in a creeping flow within a rectangular channel. Via a combination of precision experiments, simulations, and theoretical modeling, we show how the instability depends on a pressure feedback mechanism and rationalize it in terms of dimensionless param...

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Bibliographic Details
Published in:arXiv.org 2024-07
Main Authors: Garg, Hemanshul, Ledda, Pier Giuseppe, Pedersen, Jon Skov, Pezzulla, Matteo
Format: Article
Language:English
Subjects:
Buckling
Circuit design
Critical flow
Viscous flow
Online Access:Get full text
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Summary:We study the buckling of a clamped beam immersed in a creeping flow within a rectangular channel. Via a combination of precision experiments, simulations, and theoretical modeling, we show how the instability depends on a pressure feedback mechanism and rationalize it in terms of dimensionless parameters. As the beam can bend until touching the wall above a critical flow rate, we finally demonstrate how the system can be used as a tunable passive flow selector, effectively redirecting the flow within a designed hydraulic circuit.
ISSN:2331-8422