Surface roughness effects on circular cylinders at high Reynolds numbers

Michael J Eaddy, W H Melbourne, John Sheridan

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

Abstract

The problem of flow-induced vibration has been studied extensively. However, much of this research has focused on the smooth cylinder to gain an understanding of the mechanisms that cause vortex-induced vibration. In this paper results of an investigation of the effect of surface roughness on the crosswind forces are presented. Measurements of the sectional RMS fluctuating lift forces and the axial correlation of the pressures for Reynolds numbers from 1 × 105 to 1.4 × 106 are given. It was found that surface roughness significantly increased the axial correlation of the pressures to similar values found at high subcritical Reynolds numbers. There was little effect of the surface roughness on the sectional lift forces. The improved correlation of the vortex shedding means rough cylinders will be subject to larger cross-wind forces and an increased possibility of vortex-induced vibration compared to smooth cylinders.

Original languageEnglish
Title of host publication5th International Symposium on Fluid Structure Interaction, Aeroelasticity, and Flow Induced Vibration and Noise
Place of PublicationNew York NY USA
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages187-193
Number of pages7
ISBN (Print)0791836592, 9780791836590
DOIs
Publication statusPublished - 2002
EventInternational Mechanical Engineering Congress & Exposition 2002 - New Orleans USA, New Orleans, United States of America
Duration: 17 Nov 200222 Nov 2002

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings

Conference

ConferenceInternational Mechanical Engineering Congress & Exposition 2002
Abbreviated titleIMECE 2002
CountryUnited States of America
CityNew Orleans
Period17/11/0222/11/02

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