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Flow-Induced Vibration of a Truncated Cylinder at a Low Reynolds Number

  • Harbin Institute of Technology Shenzhen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Flow-induced vibration (FIV) refers to the vibration phenomenon caused by the interaction between a fluid and a solid structure, primarily induced by unsteady aerodynamic or hydrodynamic forces generated as the fluid flows around the structure. This study investigates the flow-induced vibration characteristics of a truncated cylinder at a low Reynolds number. Truncating the forebody of the cylinder at intervals of 15°, the cylinder is divided into bluff bodies with different cross-sections. Numerical simulations are conducted at a Reynolds number of 100 and a reduced velocity range of Ur = 2–20. The results show that the flow-induced vibration characteristics of the truncated cylinder are divided into three stages depending on the cross-sectional angle: typical VIV at α = 0°–60°; extended VIV at α = 75°–120°; pure galloping at α = 135°–180°. There are 10 distinct vortex-shedding modes behind the cylinder. The findings highlight the significant influence of the truncated cylinder's leading edge (forebody) on flow separation and vortex shedding.

Original languageEnglish
Title of host publicationComputational and Experimental Simulations in Engineering - Proceedings of ICCES 2025
EditorsXiqiao Feng, Kun Zhou
PublisherSpringer Science and Business Media B.V.
Pages76-90
Number of pages15
ISBN (Print)9783031967313
DOIs
StatePublished - 2026
Externally publishedYes
Event31st International Conference on Computational and Experimental Engineering and Sciences, ICCES 2025 - Changsha, China
Duration: 25 May 202529 May 2025

Publication series

NameMechanisms and Machine Science
Volume187
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992

Conference

Conference31st International Conference on Computational and Experimental Engineering and Sciences, ICCES 2025
Country/TerritoryChina
CityChangsha
Period25/05/2529/05/25

Keywords

  • fluid force
  • galloping
  • truncated cylinder
  • vortex shedding

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