The hydrodynamic forces acting on a long flexible circular cylinder responding to VIV
The hydrodynamic forces acting on a long flexible circular cylinder responding to VIV
Distributions of the fluid forces acting along a long flexible
circular cylinder free to respond in-line and transverse to
a stepped current are presented. Forces are calculated using
a finite element model of the cylinder with measured responses
providing the input. The length to diameter ratio of the model
used was 469, the mass ratio was 3 and the Reynolds number
could be varied up to maximum value of approximately 2:6 ¢104.
Fluid force coefficients for two cases are presented: in the first,
the dominant modes are the 2nd cross-flow and the 4th in line.
For the second case the leading modes are the 7th and 12th respectively.
In general, transverse force coefficients and in-line
drag coefficients are found to be larger than those measured for
short sections of cylinder undergoing free and forced one and
two-dimensional motions. It is anticipated that the results will
be of value to developers of vortex-induced vibration prediction
methods.
PVP2006-ICPVT11
Chaplin, J.R.
d5ed2ba9-df16-4a19-ab9d-32da7883309f
July 2006
Chaplin, J.R.
d5ed2ba9-df16-4a19-ab9d-32da7883309f
Chaplin, J.R.
(2006)
The hydrodynamic forces acting on a long flexible circular cylinder responding to VIV.
Proceedings of the 6th International Conference on FSI, AE & FIV+N, ASME PVP Division summer meeting, Vancouver, Canada.
22 - 26 Jul 2006.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Distributions of the fluid forces acting along a long flexible
circular cylinder free to respond in-line and transverse to
a stepped current are presented. Forces are calculated using
a finite element model of the cylinder with measured responses
providing the input. The length to diameter ratio of the model
used was 469, the mass ratio was 3 and the Reynolds number
could be varied up to maximum value of approximately 2:6 ¢104.
Fluid force coefficients for two cases are presented: in the first,
the dominant modes are the 2nd cross-flow and the 4th in line.
For the second case the leading modes are the 7th and 12th respectively.
In general, transverse force coefficients and in-line
drag coefficients are found to be larger than those measured for
short sections of cylinder undergoing free and forced one and
two-dimensional motions. It is anticipated that the results will
be of value to developers of vortex-induced vibration prediction
methods.
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Published date: July 2006
Venue - Dates:
Proceedings of the 6th International Conference on FSI, AE & FIV+N, ASME PVP Division summer meeting, Vancouver, Canada, 2006-07-22 - 2006-07-26
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Local EPrints ID: 53475
URI: http://eprints.soton.ac.uk/id/eprint/53475
PURE UUID: 00c140fb-89f3-4ce2-94bb-0558cd10f190
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Date deposited: 29 Jul 2008
Last modified: 22 Feb 2024 02:35
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