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Fluctuating lift on a circular cylinder: review and new measurements

Norberg, Christoffer LU (2003) In Journal of Fluids and Structures 17(1). p.57-96
Abstract
Apart from providing some new experimental data the paper reviews previous investigations concerning fluctuating lift acting on a stationary circular cylinder in cross-flow. In particular, effects of Reynolds number in the nominal case of an infinitely long and nonconfined cylinder in a smooth oncoming flow are discussed. The Reynolds number range covered is from about Re = 47 to 2 x 10(5), i.e., from the onset of vortex shedding up to the end of the subcritical regime. At the beginning of the subcritical regime (Reesimilar or equal to0.3 x 10(3)) a spanwise correlation length of about 30 cylinder diameters is indicated, the correlation function being based on near-cylinder velocity fluctuations in outer parts of the separated shear layer.... (More)
Apart from providing some new experimental data the paper reviews previous investigations concerning fluctuating lift acting on a stationary circular cylinder in cross-flow. In particular, effects of Reynolds number in the nominal case of an infinitely long and nonconfined cylinder in a smooth oncoming flow are discussed. The Reynolds number range covered is from about Re = 47 to 2 x 10(5), i.e., from the onset of vortex shedding up to the end of the subcritical regime. At the beginning of the subcritical regime (Reesimilar or equal to0.3 x 10(3)) a spanwise correlation length of about 30 cylinder diameters is indicated, the correlation function being based on near-cylinder velocity fluctuations in outer parts of the separated shear layer. In between Reynolds numbers 1.6 x 10(3) and 20 x 10(3), an approximate 10-fold increase in the sectional r.m.s. lift coefficient is indicated. This range contains a fundamental change-over from one flow state to another, starting off at Re similar or equal to 5 x 103 and seemingly fully developed at Re similar or equal to 8 x 10(3). (C) 2002 Elsevier Science Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Fluids and Structures
volume
17
issue
1
pages
57 - 96
publisher
Elsevier
external identifiers
  • wos:000181347600004
  • scopus:0037235499
ISSN
1095-8622
DOI
10.1016/S0889-9746(02)00099-3
language
English
LU publication?
yes
id
48a4572b-eeaf-4749-9823-a53e5ffe0813 (old id 317278)
date added to LUP
2007-09-19 12:34:09
date last changed
2017-09-17 04:53:22
@article{48a4572b-eeaf-4749-9823-a53e5ffe0813,
  abstract     = {Apart from providing some new experimental data the paper reviews previous investigations concerning fluctuating lift acting on a stationary circular cylinder in cross-flow. In particular, effects of Reynolds number in the nominal case of an infinitely long and nonconfined cylinder in a smooth oncoming flow are discussed. The Reynolds number range covered is from about Re = 47 to 2 x 10(5), i.e., from the onset of vortex shedding up to the end of the subcritical regime. At the beginning of the subcritical regime (Reesimilar or equal to0.3 x 10(3)) a spanwise correlation length of about 30 cylinder diameters is indicated, the correlation function being based on near-cylinder velocity fluctuations in outer parts of the separated shear layer. In between Reynolds numbers 1.6 x 10(3) and 20 x 10(3), an approximate 10-fold increase in the sectional r.m.s. lift coefficient is indicated. This range contains a fundamental change-over from one flow state to another, starting off at Re similar or equal to 5 x 103 and seemingly fully developed at Re similar or equal to 8 x 10(3). (C) 2002 Elsevier Science Ltd. All rights reserved.},
  author       = {Norberg, Christoffer},
  issn         = {1095-8622},
  language     = {eng},
  number       = {1},
  pages        = {57--96},
  publisher    = {Elsevier},
  series       = {Journal of Fluids and Structures},
  title        = {Fluctuating lift on a circular cylinder: review and new measurements},
  url          = {http://dx.doi.org/10.1016/S0889-9746(02)00099-3},
  volume       = {17},
  year         = {2003},
}