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Numerical analysis of interference galloping of two identical circular cylinders

  • Blazik-Borowa, E. (Department of Structural Mechanics, Faculty Civil and Sanitary Engineering, Lublin Technical University) ;
  • Flaga, A. (Department of Structural Mechanics, Faculty Civil and Sanitary Engineering, Lublin Technical University)
  • Published : 1998.09.25
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Abstract

The paper deals with numerical analysis of interference galloping of two elastically supported circular cylinders of equal diameters. The basis of the analysis is quasi-steady model of this phenomenon. The model assumes that both cylinders participate in process of interference galloping and they have two degrees of freedom. The movement of the cylinders is written as a set of four nonlinear differential equations. On the basis of numerical solutions of this equations the authors 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

References

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