The interference galloping of two circular cylinders with equal diameters.

Ewa Błazik-Borowa


Department of Structural Mechanics; Faculty of Civil Engineering and Architecture; Lublin University of Technology (Poland)
https://orcid.org/0000-0001-8200-3827

Abstract

The paper deals with numerical analyses of interference galloping of two elasticcaly supported circular cylinders of equal diameters. The basis of the analyses is a quasi-steady model of this phenomenon. The model assumes that both cylinders participate in the process of interference galloping and they have two degrees of freedom. The movement of the cylinders is described as a set of four nonlinear differential equations. On the basis of numerical solutions of these equations the author evaluate the correctness of this quasi-steady model. Then they estimate the dependence of a critical reduced velocity on the Scruton number, turbulence intensity and arrangements of the cylinders.


Keywords:

Aerodynamic interference, circular cylinders, interference galloping, semi-induced vibration

Zdravkovich M.M., Review of Interference - Induced Oscillations in Flow Past Two Parallel Circular Cylinders in Various Arrangements, Seventh International Conference on Wind Engineering, vol.2, Aachen 1987, str.51-66.
DOI: https://doi.org/10.1016/B978-0-444-87156-5.50029-1   Google Scholar

Zdravkovich M.M. i Pridden D.L., Interference Between Two Identical Circular Cylinders, Series of Unexpected Discontinuities, Journal of Industrial Aerodynamics, 1977, str. 255-270.
DOI: https://doi.org/10.1016/0167-6105(77)90026-5   Google Scholar

Zdravkovich M.M. i E.Medeiros E., Effect of Damping on Interference-Induced Oscillations of Two Identical Circular Cylinders, Journal of Wind Engineering and Industrial Aerodynamics, 1991, str.197-211.
DOI: https://doi.org/10.1016/0167-6105(91)90041-T   Google Scholar

Ruscheweyh H., Interferenz Zwischen Bauwerken, Beiträge zur Anwendung der Aeroelastik im Bauwesen, Heft 13, München 1979, str.49-59.
  Google Scholar

Ruscheweyh H., Dynamische Windwirkung durch Interferenz an benachbarten schlanken Bauwerken, Konstruktiver Ingenieurbau - berichte 35/36, Essen 1981, str.60-65.
  Google Scholar

Ruscheweyh H. i Dielen B., Interference Galloping - Investigations Concerning the Phase Lag of the Flow Switching, Journal of Wind Engineering and Industrial Aerodynamics, vol.41-44 1992, str. 2047-2056.
DOI: https://doi.org/10.1016/0167-6105(92)90631-J   Google Scholar

Matsumoto M. i in., Aerdynamic Instabilities of Twin Circular Cylinders, The International Colloqium on Bluf Body Aerodynamics and Its Applications, Kyoto 1988, str.91-100.
DOI: https://doi.org/10.1016/0167-6105(90)90024-7   Google Scholar

Shiraishi N., Matsumoto M. i Shirato H., On Aerodynamic Instabilities of Tandem Structures, Journal of Wind Engineering and Industrial Aerodynamics, vol.23, 1986, str.437-447.
DOI: https://doi.org/10.1016/0167-6105(86)90061-9   Google Scholar

Studničkova M., Induced Vibrations of Leeward Ropes - A Practical Example, East European Conference on Wind Engineering, Part 1 vol.3 , Warszawa 1994, str.157-167.
  Google Scholar

Błazik-Borowa E. i Flaga A., Modelling of Aerodynamic Loads on a Downstream Cylinder Caused by Bistable Flow Between Two Circular Cylinders, Journal of Wind Engineering and Industrial Aerodynamics, vol.65, 1996, str. 361-370.
DOI: https://doi.org/10.1016/S0167-6105(97)00054-8   Google Scholar

Błazik-Borowa E. i Flaga A., Quasisteady Models of Aerodynamic Loads on Two Circular Cylinders in Staggered Arrangement, Ninth International Conference on Wind Engineering, “Retrospect and Prospect”, vol.1, New Delhi 9-13 styczeń 1995, str.95-107.
  Google Scholar

Błazik-Borowa E., Flaga.A i Kazakiewicz M., Problemy interferencji aerodynamicznej dwóch walców kołowych, Archiwum Inżynierii Lądowej, Studia z Zakresu Inżynierii Lądowej, zeszyt nr 42, Warszawa 1997.
  Google Scholar

Błazik-Borowa E. i Flaga A., Numerical Analysis of the Interference Galloping of Two Identical Circular Cylinders at Unsteady Flow, 2EACWE, Genua 22-26 czerwiec 1997, str.1815-1822.
  Google Scholar

EUROCODE 1: Part 6, Wind Loading. Draft, December 1993.
  Google Scholar

Medeiros E. i Zdravkovich M.M., Interference Induced Oscillations of two unequal Cylinders, Journal of Wind Engineering and Industrial Aerodynamics, vol.41-44, 1992, str.753-762.
DOI: https://doi.org/10.1016/0167-6105(92)90494-U   Google Scholar


Published
2007-12-11

Cited by

Błazik-Borowa, E. . (2007) “The interference galloping of two circular cylinders with equal diameters”., Budownictwo i Architektura, 1(1), pp. 087–102. doi: 10.35784/bud-arch.2303.

Authors

Ewa Błazik-Borowa 

Department of Structural Mechanics; Faculty of Civil Engineering and Architecture; Lublin University of Technology Poland
https://orcid.org/0000-0001-8200-3827

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