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Computational fluid-structure interaction simulations for wind induced vibrations in silo groups

Jeroen Hillewaere, Joris Degroote UGent, Geert Lombaert, Jan Vierendeels UGent and Geert Degrande (2011) COMPUTATIONAL METHODS FOR COUPLED PROBLEMS IN SCIENCE AND ENGINEERING IV. p.934-945
abstract
During a storm in October 2002, wind induced ovalling vibrations were observed on several empty silos of a closely spaced group consisting of 8 by 5 silos in the port of Antwerp (Belgium). First, a thorough understanding of the fluid flow around the group is required to clarify the underlying mechanisms for the vibration. Since the configuration and orientation of the group drastically change the pressure distribution on the silos of the group, the flow regime around and within the silo group has been simulated for 7 angles of incidence between 0 and 90, leaving other parameters unchanged (e.g. spacing ratio, Reynolds number,...). The flow regime shows similarities with the flow within tube arrays (e.g. heat exchangers) and the flow around rectangular cylinders. By a ‘one way coupling’ of static (time averaged) and dynamic (fluctuating) pressure loadings on the cylinder surfaces it is examined if the excitation of ovalling vibrations in the silo group is possible. Two probable causes of observable silo vibrations in the group are observed. The first, as a result of large static wind pressures and fluctuating drag and lift coefficients, might lead to rigid body motions of the statically deformed silos. The second, due to higher dynamic pressure oscillations, can excite ovalling oscillations in the third and fourth eigenmodes at the lee side of the group, corresponding with the lowest eigenfrequencies of the silos and the visually detected vibrations in 2002. Although it is shown by this ‘one way coupling’ that ovalling vibrations can be excited in the group, more advanced ‘two way coupled’ fluid-structure interaction simulations are required to determine the underlying mechanism inducing these aeroelastic deformations.
Please use this url to cite or link to this publication:
author
organization
year
type
conference (proceedingsPaper)
publication status
published
subject
keyword
Ovalling, Wind-structure interaction, CIRCULAR-CYLINDER, REYNOLDS-NUMBERS, Silo, Cylinder group, CROSS-FLOW
in
COMPUTATIONAL METHODS FOR COUPLED PROBLEMS IN SCIENCE AND ENGINEERING IV
editor
M Papadrakakis, E Oñate and B Schrefler
pages
934 - 945
publisher
Artes Gráficas TorresSciences (ECCOMAS)
place of publication
Cornellà de Llobregat, Spain
conference name
4th International Conference on Computational Methods for Coupled Problems in Science and Engineering (COUPLED PROBLEMS)
conference location
Kos Island, Greece
conference start
2011-06-20
conference end
2011-06-22
Web of Science type
Proceedings Paper
Web of Science id
000313559700082
ISBN
978-84-89925-78-6
language
English
UGent publication?
yes
classification
P1
copyright statement
I have retained and own the full copyright for this publication
id
2019860
handle
http://hdl.handle.net/1854/LU-2019860
date created
2012-02-06 09:47:26
date last changed
2017-01-02 09:53:10
@inproceedings{2019860,
  abstract     = {During a storm in October 2002, wind induced ovalling vibrations were observed on several empty silos of a closely spaced group consisting of 8 by 5 silos in the
port of Antwerp (Belgium). First, a thorough understanding of the fluid flow around the group is required to clarify the underlying mechanisms for the vibration. Since the configuration and orientation of the group drastically change the pressure distribution on the silos of the group, the flow regime around and within the silo group has been simulated for 7 angles of incidence between 0\unmatched{000e} and 90\unmatched{000e}, leaving other parameters unchanged (e.g. spacing ratio, Reynolds number,...). The flow regime shows similarities with the flow within tube arrays (e.g. heat exchangers) and the flow around rectangular cylinders. By a {\textquoteleft}one way coupling{\textquoteright} of static (time averaged) and dynamic (fluctuating) pressure loadings on the cylinder surfaces it is examined if the excitation of ovalling vibrations in the silo group is possible. Two probable causes of observable silo vibrations in the group are observed. The first, as a result of large static wind pressures and fluctuating drag and lift coefficients, might lead to rigid body motions of the statically deformed silos. The second, due to higher dynamic pressure oscillations, can excite ovalling oscillations in the third and fourth eigenmodes at the lee side of the group, corresponding with the lowest eigenfrequencies of the silos and the visually detected vibrations in 2002. Although it is shown by this {\textquoteleft}one way coupling{\textquoteright} that ovalling vibrations can be excited in the group, more advanced {\textquoteleft}two way coupled{\textquoteright} fluid-structure interaction simulations are required to determine the underlying mechanism inducing these aeroelastic deformations.},
  author       = {Hillewaere, Jeroen and Degroote, Joris and Lombaert, Geert and Vierendeels, Jan and Degrande, Geert},
  booktitle    = {COMPUTATIONAL METHODS FOR COUPLED PROBLEMS IN SCIENCE AND ENGINEERING IV},
  editor       = {Papadrakakis, M and O{\~n}ate, E and Schrefler, B},
  isbn         = {978-84-89925-78-6},
  keyword      = {Ovalling,Wind-structure interaction,CIRCULAR-CYLINDER,REYNOLDS-NUMBERS,Silo,Cylinder group,CROSS-FLOW},
  language     = {eng},
  location     = {Kos Island, Greece},
  pages        = {934--945},
  publisher    = {Artes Gr{\'a}ficas TorresSciences (ECCOMAS)},
  title        = {Computational fluid-structure interaction simulations for wind induced vibrations in silo groups},
  year         = {2011},
}

Chicago
Hillewaere, Jeroen, Joris Degroote, Geert Lombaert, Jan Vierendeels, and Geert Degrande. 2011. “Computational Fluid-structure Interaction Simulations for Wind Induced Vibrations in Silo Groups.” In Computational Methods for Coupled Problems in Science and Engineering Iv, ed. M Papadrakakis, E Oñate, and B Schrefler, 934–945. Cornellà de Llobregat, Spain: Artes Gráficas TorresSciences (ECCOMAS).
APA
Hillewaere, J., Degroote, J., Lombaert, G., Vierendeels, J., & Degrande, G. (2011). Computational fluid-structure interaction simulations for wind induced vibrations in silo groups. In M Papadrakakis, E. Oñate, & B. Schrefler (Eds.), COMPUTATIONAL METHODS FOR COUPLED PROBLEMS IN SCIENCE AND ENGINEERING IV (pp. 934–945). Presented at the 4th International Conference on Computational Methods for Coupled Problems in Science and Engineering (COUPLED PROBLEMS), Cornellà de Llobregat, Spain: Artes Gráficas TorresSciences (ECCOMAS).
Vancouver
1.
Hillewaere J, Degroote J, Lombaert G, Vierendeels J, Degrande G. Computational fluid-structure interaction simulations for wind induced vibrations in silo groups. In: Papadrakakis M, Oñate E, Schrefler B, editors. COMPUTATIONAL METHODS FOR COUPLED PROBLEMS IN SCIENCE AND ENGINEERING IV. Cornellà de Llobregat, Spain: Artes Gráficas TorresSciences (ECCOMAS); 2011. p. 934–45.
MLA
Hillewaere, Jeroen, Joris Degroote, Geert Lombaert, et al. “Computational Fluid-structure Interaction Simulations for Wind Induced Vibrations in Silo Groups.” Computational Methods for Coupled Problems in Science and Engineering Iv. Ed. M Papadrakakis, E Oñate, & B Schrefler. Cornellà de Llobregat, Spain: Artes Gráficas TorresSciences (ECCOMAS), 2011. 934–945. Print.