TITLE

Chaotic and mode-locked interactions between flow-induced collapsible-tube oscillation and pulsatile upstream forcing

AUTHOR(S)
Bertram, C. D.; She, Jianwei
PUB. DATE
February 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 502 Issue 1, p510
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Interactions were examined between the otherwise periodic self-excited oscillation of a pneumatically compressed flexible tube conveying an aqueous flow, and pulsations induced by connecting the output of a hydraulically controlled piston pump executing sinusoidal piston displacements in parallel with the steady flow-driving head. Depending on pump amplitude and frequency, the oscillatory interaction consisted of either resonance, periodic entrainment or aperiodicity. Despite limitations imposed by intrinsic turbulent noise, aperiodic interactions were shown to exhibit characteristics of a low-dimensional chaotic attractor. © 2000 American Institute of Physics.
ACCESSION #
6028511

 

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