Predicting turbulence-induced vibration in axial annular flow by means of large-eddy simulations

Jeroen De Ridder; Joris Degroote; Katrien Van Tichelen; Paul Schuurmans; Jan Vierendeels

doi:10.1016/j.jfluidstructs.2015.10.011

Predicting turbulence-induced vibration in axial annular flow by means of large-eddy simulations

Jeroen De Ridder, Joris Degroote, Katrien Van Tichelen, Paul Schuurmans, Jan Vierendeels

Research output › peer-review

Abstract

Turbulence-induced vibration is typically considered as a type of vibration with one-way coupling between the fluid flow and the structural motion: the turbulence creates an incident force field on the structure, but the structural displacement does not influence the turbulence. It is however challenging to measure the turbulence forcing function experimentally. In this article, the forcing function in annular flow is computed by means of Large-eddy simulations. The pressure spectrum is applied to the inner cylinder and the resulting vibration is computed. It is shown that the commonly used multiplication hypothesis does not hold for the present results. The computed spectrum showed an upper limit to the coherence length. The results of these computations are compared to experimental results available in literature and to semi-empirical models. The predicted displacements compared well with experimental results.

Original language	English
Pages (from-to)	115-131
Journal	Journal of Fluids and Structures
Volume	61
DOIs	https://doi.org/10.1016/j.jfluidstructs.2015.10.011
State	Published - Feb 2016

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10.1016/j.jfluidstructs.2015.10.011

Cite this

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title = "Predicting turbulence-induced vibration in axial annular flow by means of large-eddy simulations",

abstract = "Turbulence-induced vibration is typically considered as a type of vibration with one-way coupling between the fluid flow and the structural motion: the turbulence creates an incident force field on the structure, but the structural displacement does not influence the turbulence. It is however challenging to measure the turbulence forcing function experimentally. In this article, the forcing function in annular flow is computed by means of Large-eddy simulations. The pressure spectrum is applied to the inner cylinder and the resulting vibration is computed. It is shown that the commonly used multiplication hypothesis does not hold for the present results. The computed spectrum showed an upper limit to the coherence length. The results of these computations are compared to experimental results available in literature and to semi-empirical models. The predicted displacements compared well with experimental results.",

keywords = "Large-Eddy Simulations, turbulence-induced vibration, annular flow, axial flow",

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T1 - Predicting turbulence-induced vibration in axial annular flow by means of large-eddy simulations

AU - De Ridder, Jeroen

AU - Degroote, Joris

AU - Van Tichelen, Katrien

AU - Schuurmans, Paul

AU - Vierendeels, Jan

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N2 - Turbulence-induced vibration is typically considered as a type of vibration with one-way coupling between the fluid flow and the structural motion: the turbulence creates an incident force field on the structure, but the structural displacement does not influence the turbulence. It is however challenging to measure the turbulence forcing function experimentally. In this article, the forcing function in annular flow is computed by means of Large-eddy simulations. The pressure spectrum is applied to the inner cylinder and the resulting vibration is computed. It is shown that the commonly used multiplication hypothesis does not hold for the present results. The computed spectrum showed an upper limit to the coherence length. The results of these computations are compared to experimental results available in literature and to semi-empirical models. The predicted displacements compared well with experimental results.

AB - Turbulence-induced vibration is typically considered as a type of vibration with one-way coupling between the fluid flow and the structural motion: the turbulence creates an incident force field on the structure, but the structural displacement does not influence the turbulence. It is however challenging to measure the turbulence forcing function experimentally. In this article, the forcing function in annular flow is computed by means of Large-eddy simulations. The pressure spectrum is applied to the inner cylinder and the resulting vibration is computed. It is shown that the commonly used multiplication hypothesis does not hold for the present results. The computed spectrum showed an upper limit to the coherence length. The results of these computations are compared to experimental results available in literature and to semi-empirical models. The predicted displacements compared well with experimental results.

KW - Large-Eddy Simulations

KW - turbulence-induced vibration

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KW - axial flow

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