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Influence of stream turbulence intensity and eddy size of the fluctuating pressure forces on a single tube

Norberg, Christoffer LU and Sundén, Bengt LU (1984) 1. p.43-56
Abstract
This paper presents a systematic investigation of the influence of stream
turbulence on the pressure forces on a single tube. Grids were used to produce
different turbulent flow fields with longitudinal integral scale (eddy size)
ranging from 0.1 to 0.5 tube diameters and turbulence intensities ranging from
0.1 to 3-2 %. The measurements were carried out at two Reynolds numbers, 2.7 - 10 and U.1-104 , respectively.

Results are presented for the mean and fluctuating pressures including
spectral distributions, skewness and flatness factors of the fluctuating pre-
ssure. The rms force coefficients were estimated using the phase differences and
rms pressure coefficients around the... (More)
This paper presents a systematic investigation of the influence of stream
turbulence on the pressure forces on a single tube. Grids were used to produce
different turbulent flow fields with longitudinal integral scale (eddy size)
ranging from 0.1 to 0.5 tube diameters and turbulence intensities ranging from
0.1 to 3-2 %. The measurements were carried out at two Reynolds numbers, 2.7 - 10 and U.1-104 , respectively.

Results are presented for the mean and fluctuating pressures including
spectral distributions, skewness and flatness factors of the fluctuating pre-
ssure. The rms force coefficients were estimated using the phase differences and
rms pressure coefficients around the tube.

The results indicate considerable influence of the turbulence intensity but
weaker influence of the eddy size and of the Reynolds number. (Less)
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author
and
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
ASME Winter Annual Meeting : Symposium on Fluid-Induced Vibrations, Dec. 9-14, 1984, New Orleans, U.S. - Symposium on Fluid-Induced Vibrations, Dec. 9-14, 1984, New Orleans, U.S.
editor
Paidoussis, Michael P. ; Griffin, Owen M. and Sevik, M.
volume
1
pages
43 - 56
publisher
American Society Of Mechanical Engineers (ASME)
language
English
LU publication?
no
id
b243c6b3-29b2-4905-81fb-4029c6fb8661
date added to LUP
2023-02-15 17:12:59
date last changed
2023-02-20 12:33:59
@inproceedings{b243c6b3-29b2-4905-81fb-4029c6fb8661,
  abstract     = {{This paper presents a systematic investigation of the influence of stream<br/>turbulence on the pressure forces on a single tube. Grids were used to produce<br/>different turbulent flow fields with longitudinal integral scale (eddy size)<br/>ranging from 0.1 to 0.5 tube diameters and turbulence intensities ranging from<br/>0.1 to 3-2 %. The measurements were carried out at two Reynolds numbers, 2.7 - 10 and U.1-10<sup>4</sup> , respectively.<br/><br/>Results are presented for the mean and fluctuating pressures including<br/>spectral distributions, skewness and flatness factors of the fluctuating pre-<br/>ssure. The rms force coefficients were estimated using the phase differences and<br/>rms pressure coefficients around the tube.<br/><br/>The results indicate considerable influence of the turbulence intensity but<br/>weaker influence of the eddy size and of the Reynolds number.}},
  author       = {{Norberg, Christoffer and Sundén, Bengt}},
  booktitle    = {{ASME Winter Annual Meeting : Symposium on Fluid-Induced Vibrations, Dec. 9-14, 1984, New Orleans, U.S.}},
  editor       = {{Paidoussis, Michael P. and Griffin, Owen M. and Sevik, M.}},
  language     = {{eng}},
  pages        = {{43--56}},
  publisher    = {{American Society Of Mechanical Engineers (ASME)}},
  title        = {{Influence of stream turbulence intensity and eddy size of the fluctuating pressure forces on a single tube}},
  url          = {{https://lup.lub.lu.se/search/files/137952754/Norberg_ASME_1984.pdf}},
  volume       = {{1}},
  year         = {{1984}},
}