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Turbulence Intensity Effect on Axial-Flow-Induced Cylinder Vibration

  • Z. Y. Lu
  • Y. Zhou
  • C. W. Wong
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

A numerical study is conducted on the effect of inlet turbulent intensity on the axial-flow-induced vibration of an elastic cylinder subjected to axial tubular flow. The cylinder with fix-supported ends is free to vibrate in the lateral direction. While a large eddy simulation is used to calculate the turbulent flow field, the Ansys mechanical + Fluent two-way coupling has been deployed to capture the fluid-structure interaction. The calculation agrees qualitatively with experimental data. Various inlet turbulence intensities, T u , i.e., 0, 0.3, 5.0 and 10.0%, are examined at two non-dimensional flow velocities, \( \overline{U} \), i.e., 3.30 and 7.62. The results show that T u has a significant effect on the cylinder vibration. At \( \overline{U} \) = 3.30, the maximum displacement grows with T u and the vibration is classified as the subcritical vibration; the instability of cylinder is not induced with increasing T u . At \( \overline{U} \) = 7.62, the buckling occurs at T u = 0%, while the flutter takes place at T u = 0.3%; both are associated with an asymmetric pressure distribution around the cylinder.

Keywords

Axial-flow-induced vibration Inlet turbulence intensity Elastic cylinder Fluid-structure interaction 

Notes

Acknowledgements

The financial support from Shenzhen Government through grants JCYJ20150625142543469 and JCYJ20150513151706565 is gratefully acknowledged.

References

  1. 1.
    Paidoussis MP (2004) Fluid-structure interactions: slender structures and axial flow, vol 2. Academic Press, NetherlandsGoogle Scholar
  2. 2.
    Swinson WF, Battiste RL, Luttrell CR, Yahr GT (1993) Follow-up fuel plate stability experiments and analyses for the advanced neutron source. United States Department of Energy. Oak Ridge National Laboratory, Oak Ridge Tennessee. Technical Report No. ORNL/TM–12629Google Scholar
  3. 3.
    Ansys Workbench 15.0 Document (2015) Ansys IncGoogle Scholar
  4. 4.
    Païdoussis MP (1966) Dynamics of flexible slender cylinders in axial flow Part 2. Experiments. J Fluid Mech 26:737–751CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Institute for Turbulence-Noise-Vibration Interactions and Control, Shenzhen Graduate SchoolHarbin Institute of TechnologyShenzhenChina
  2. 2.State Key Laboratory of AerodynamicsChina Aerodynamics Research and Development CenterMianyangChina

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