Abstract
This paper shows LES analysis of turbulence effects on vortex-induced oscillation of a circular cylinder. First, we discuss the accuracy of the computed results of the wake flows and pressure distribution for a stationary circular cylinder in smooth and turbulent flows as a function of Reynolds numbers. Next, the present LES method is applied to the flow around a freely-oscillating circular cylinder in smooth and turbulent flows. Turbulence effects on characteristics of the response and vortex motions around an oscillating circular cylinder are examined. Consequently, we investigated the swiching of the vortex patterns and the effect of secondary vortices on rapid phase jump, concerning the vortex formation. It is recognized that only one of two vortex patterns in lock-in range is weaken by oncoming turbulence, while another is not.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Structural and Construction Engineering (Transactions of AIJ)
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
