TY - GEN
T1 - Large-Eddy Simulations of Turbulence-induced Vibration in Annular Flow
AU - De Ridder, Jeroen
AU - Degroote, Joris
AU - Vierendeels, Jan
AU - Van Tichelen, Katrien
AU - Schuurmans, Paul
A2 - Keijers, Steven
N1 - Score = 3
PY - 2014/7/20
Y1 - 2014/7/20
N2 - This paper investigates the turbulence-induced vibration of a circular beam in annular pipe flow. Vibrations induced by turbulence are one of the causes of fatigue and fretting wear in process environments. Although the small-scale vibrations are normally not leading to immediate failure of structural components, they typically result in long term damage. To predict the amplitude of these subcritical vibrations, current methods require an accurate description of the incident pressure field. However, measurements of cross-spectral pressure fields in annular geometries are rare. Models to describe the pressure field have a tendency to provide only descriptive information, after a series of experiments have been performed. Therefore this paper aims to predict the pressure field numerically, by means of wall-resolved large-eddy simulations. In order to validate this approach the flow field of an experiment available in literature is computed. In the conditions simulated, water is flowing at 10 m/s in an annulus with a hydraulic diameter of 1.27cm. Pressure correlations obtained from the computations are compared to descriptive models such as the Corcos and Chase models. The numerical power spectra are also compared to experimental spectra.
AB - This paper investigates the turbulence-induced vibration of a circular beam in annular pipe flow. Vibrations induced by turbulence are one of the causes of fatigue and fretting wear in process environments. Although the small-scale vibrations are normally not leading to immediate failure of structural components, they typically result in long term damage. To predict the amplitude of these subcritical vibrations, current methods require an accurate description of the incident pressure field. However, measurements of cross-spectral pressure fields in annular geometries are rare. Models to describe the pressure field have a tendency to provide only descriptive information, after a series of experiments have been performed. Therefore this paper aims to predict the pressure field numerically, by means of wall-resolved large-eddy simulations. In order to validate this approach the flow field of an experiment available in literature is computed. In the conditions simulated, water is flowing at 10 m/s in an annulus with a hydraulic diameter of 1.27cm. Pressure correlations obtained from the computations are compared to descriptive models such as the Corcos and Chase models. The numerical power spectra are also compared to experimental spectra.
KW - Large-Eddy Simulations
KW - Turbulence
KW - Vibrations
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_140465
UR - http://knowledgecentre.sckcen.be/so2/bibref/12925
U2 - 10.1115/PVP2014-28374
DO - 10.1115/PVP2014-28374
M3 - In-proceedings paper
SN - 978-0-7918-4601-8
VL - 4
T3 - ASME Pressure Vessels and Piping Conference
BT - Proceedings ASME 2014 Pressure Vessels and Piping Conference ; Volume 4: Fluid-Structure Interaction
CY - United States
T2 - 2014 - ASME - Pressure Vessels and Piping Conference
Y2 - 20 July 2014 through 24 July 2014
ER -