The effect of wavy surface on vortex shedding from an inclined cylinder in turbulent flow

K. Lam, Y. F. Lin, L. Zou, Yang Liu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

3 Citations (Scopus)

Abstract

A large eddy simulation study was conducted to investigate the three-dimensional characteristics of the turbulent flow past an inclined wavy cylinder with four different inclined angles of attack at a subcritical Reynolds number of 3900. Comparing with an inclined circular cylinder at the same Reynolds number, significant differences in wake vortex patterns were observed for wavy cylinder with small inclined angle while the difference in wake pattern becomes insignificant for large inclined angle. This implies that significant drag reduction and fluctuating lift suppression would be obtained for wavy cylinder with small inclination while such effects disappear for large inclined angle.
Original languageEnglish
Title of host publicationThe Proceedings of the 19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE
Pages1343-1350
Number of pages8
Publication statusPublished - 1 Dec 2009
Event19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE - Osaka, Japan
Duration: 21 Jun 200926 Jun 2009

Conference

Conference19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE
Country/TerritoryJapan
CityOsaka
Period21/06/0926/06/09

Keywords

  • Inclined angle
  • Large eddy simulation
  • Turbulent flow
  • Wake structures
  • Wavy cylinder

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

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