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

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

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 proceeding › Conference article published in proceeding or book › Academic research › peer-review

4 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 language	English
Title of host publication	The Proceedings of the 19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE
Pages	1343-1350
Number of pages	8
Publication status	Published - 1 Dec 2009
Event	19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE - Osaka, Japan Duration: 21 Jun 2009 → 26 Jun 2009

Conference

Conference	19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE
Country/Territory	Japan
City	Osaka
Period	21/06/09 → 26/06/09

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

Cite this

@inproceedings{cd23db1e6f8e4e8498dae08928cce8f5,

title = "The effect of wavy surface on vortex shedding from an inclined cylinder in turbulent flow",

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.",

keywords = "Inclined angle, Large eddy simulation, Turbulent flow, Wake structures, Wavy cylinder",

author = "K. Lam and Lin, {Y. F.} and L. Zou and Yang Liu",

year = "2009",

month = dec,

day = "1",

language = "English",

isbn = "9781880653531",

pages = "1343--1350",

booktitle = "The Proceedings of the 19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE",

note = "19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE ; Conference date: 21-06-2009 Through 26-06-2009",

}

The effect of wavy surface on vortex shedding from an inclined cylinder in turbulent flow. / Lam, K.; Lin, Y. F.; Zou, L. et al.
The Proceedings of the 19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE. 2009. p. 1343-1350.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

T1 - The effect of wavy surface on vortex shedding from an inclined cylinder in turbulent flow

AU - Lam, K.

AU - Lin, Y. F.

AU - Zou, L.

AU - Liu, Yang

PY - 2009/12/1

Y1 - 2009/12/1

N2 - 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.

AB - 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.

KW - Inclined angle

KW - Large eddy simulation

KW - Turbulent flow

KW - Wake structures

KW - Wavy cylinder

UR - http://www.scopus.com/inward/record.url?scp=74549170640&partnerID=8YFLogxK

M3 - Conference article published in proceeding or book

SN - 9781880653531

SP - 1343

EP - 1350

BT - The Proceedings of the 19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE

T2 - 19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE

Y2 - 21 June 2009 through 26 June 2009

ER -

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

Abstract

Conference

Keywords

ASJC Scopus subject areas

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