Passive Viscous Flow Selection via Fluid-Induced Buckling

TY - JOUR

T1 - Passive Viscous Flow Selection via Fluid-Induced Buckling

AU - Garg, Hemanshul

AU - Ledda, Pier Giuseppe

AU - Skov Pedersen, Jon

AU - Pezzulla, Matteo

PY - 2024/8/19

Y1 - 2024/8/19

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85201683493&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.133.084001

DO - 10.1103/PhysRevLett.133.084001

M3 - Journal article

C2 - 39241735

SN - 0031-9007

VL - 133

JO - Physical Review Letters

JF - Physical Review Letters

IS - 8

M1 - 084001

ER -