Self-excited oscillations in three-dimensional collapsible tubes : simulating their onset and large-amplitude oscillations

@inproceedings{Heil2010SelfexcitedOI,
title={Self-excited oscillations in three-dimensional collapsible tubes : simulating their onset and large-amplitude oscillations},
author={Matthias Heil and Jonathan Boyle},
year={2010}
}

We employ numerical simulations to explore the development of flow-induced self-excited oscillations in three-dimensional collapsible tubes which are subject to boundary conditions (flow rate prescribed at the outflow boundary) that encourage the development of high-frequency oscillations via an instability mechanism originally proposed by Jensen & Heil (J. Fluid Mech., vol. 481, 2003, p. 235). The simulations show that self-excited oscillations tend to arise preferentially from steady… CONTINUE READING