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Dynamic response and wake structures of cantilevers with square cross-section

Revstedt, Johan LU and Lorentzon, Johan LU (2017) Ninth national conference on Computational Mechanics p.7-19
Abstract
The dynamic response of cantilevers to a hydrodynamic load has been studied numerically. The Reynolds number of the flow was fixed at 5000 and the variation in re-duced velocity was achieved by varying the Young’s modulus of the cantilever. Cantilevers with aspectratios of 5 and 10 were considered for reduced velocities in the range 2 to 30. The simulations were performed using a strongly coupled FSI tool based in the open source projects DEAL. IIand Open FOAM. The results show that as the eigenfrequency of the cantilever coincides with the vortex shedding frequency, the amplitude of the oscillation substantially increases, as expected. However, no desynchronization is observed for higher values of reduced velocity. Instead the amplitude... (More)
The dynamic response of cantilevers to a hydrodynamic load has been studied numerically. The Reynolds number of the flow was fixed at 5000 and the variation in re-duced velocity was achieved by varying the Young’s modulus of the cantilever. Cantilevers with aspectratios of 5 and 10 were considered for reduced velocities in the range 2 to 30. The simulations were performed using a strongly coupled FSI tool based in the open source projects DEAL. IIand Open FOAM. The results show that as the eigenfrequency of the cantilever coincides with the vortex shedding frequency, the amplitude of the oscillation substantially increases, as expected. However, no desynchronization is observed for higher values of reduced velocity. Instead the amplitude remains fairly constant for the shorter cantilever and continuously increase for the longer one. (Less)
Please use this url to cite or link to this publication:
author
and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
FSI, LES, Deforming cantilever
host publication
National Conferenceon Computational Mechanics
editor
Skallerud, Björn and Andersson, Helge
pages
12 pages
conference name
Ninth national conference on Computational Mechanics
conference location
Trondheim, Norway
conference dates
2017-05-11 - 2017-05-12
ISBN
978-84-947311-1-2
language
English
LU publication?
yes
id
cfefe1c7-0d8d-416f-95f2-24f2e81314fe
alternative location
http://agraficastorres.es/cimnecongress/MEKIT_2017/Ebook%20Mekit17.pdf
date added to LUP
2019-04-01 17:58:25
date last changed
2019-04-23 10:35:34
@inproceedings{cfefe1c7-0d8d-416f-95f2-24f2e81314fe,
  abstract     = {{The dynamic response of cantilevers to a hydrodynamic load has been studied numerically. The Reynolds number of the flow was fixed at 5000 and the variation in re-duced velocity was achieved by varying the Young’s modulus of the cantilever. Cantilevers with aspectratios of 5 and 10 were considered for reduced velocities in the range 2 to 30. The simulations were performed using a strongly coupled FSI tool based in the open source projects DEAL. IIand Open FOAM. The results show that as the eigenfrequency of the cantilever coincides with the vortex shedding frequency, the amplitude of the oscillation substantially increases, as expected. However, no desynchronization is observed for higher values of reduced velocity. Instead the amplitude remains fairly constant for the shorter cantilever and continuously increase for the longer one.}},
  author       = {{Revstedt, Johan and Lorentzon, Johan}},
  booktitle    = {{National Conferenceon Computational Mechanics}},
  editor       = {{Skallerud, Björn and Andersson, Helge}},
  isbn         = {{978-84-947311-1-2}},
  keywords     = {{FSI; LES; Deforming cantilever}},
  language     = {{eng}},
  pages        = {{7--19}},
  title        = {{Dynamic response and wake structures of cantilevers with square cross-section}},
  url          = {{http://agraficastorres.es/cimnecongress/MEKIT_2017/Ebook%20Mekit17.pdf}},
  year         = {{2017}},
}