• Jul 12, 2018 News![CFP] 2019 the annual meeting of IJMMM Editorial Board, ECMMM 2019, will be held in Amsterdam, Netherlands during February 16-18, 2019.   [Click]
  • Feb 26, 2018 News!'Writing Tips' shared by Prof. Ian McAndrew!   [Click]
  • Nov 22, 2018 News!Papers published in Vol.6, No.5-No.6 have all received dois from Crossref.
General Information
    • ISSN: 1793-8198
    • Frequency: Quarterly
    • DOI: 10.18178/IJMMM
    • Editor-in-Chief: Prof. K. M. Gupta, Prof. Ian McAndrew
    • Executive Editor: Ms. Cherry L. Chen
    • Abstracting/Indexing: EI (INSPEC, IET), Chemical Abstracts Services (CAS),  ProQuest, Crossref, Ulrich's Periodicals Directory,  etc.
    • E-mail ijmmm@ejournal.net
Editor-in-chief
Prof. Ian McAndrew
Capitol Technology University, USA
It is my honor to be the editor-in-chief of IJMMM. I will do my best to help develop this journal better.

IJMMM 2014 Vol.2(1): 92-95 ISSN: 1793-8198
DOI: 10.7763/IJMMM.2014.V2.107

Passive Drag Reduction Techniques for Modulating the Effects of Vortex Shedding

Raed I. Bourisli
Abstract—Over a wide range of Reynolds numbers, the phenomenon of vortex shedding and the associated fluctuations in drag and lift, and the possible vibration in the structure, can be a formidable problem in many applications. Attempts have been made to control, reduce, or altogether eliminate these vortex-induced fluctuations in flow properties. In this study, unsteady laminar flow around a circular cylinder is numerically simulated using the finite volume method. The passive technique of introducing simple slits at specified locations around the cylinder for the purpose of modulating the effect of vortex shedding is investigated. It was found that at a Reynolds number of 1000 the reduction in the coefficient of drag is over 14%, which decreases in Nusselt number, and thus the total heat transfer from the cylinder, of 15.5% and 4.44%, respectively. Physical insight is given to explain the source of the phenomenon, and the advantages of applying such passive techniques to control free flows are discussed.

Index Terms—Vortex shedding, passive drag reduction, slit cylinder, CFD.

R. I. Bourisli is with the Mechanical Engineering Department, Kuwait University, PO Box 5969 Safat, Kuwait (e-mail: raed.bourisli@ku.edu.kw).

[PDF]

Cite:Raed I. Bourisli, "Passive Drag Reduction Techniques for Modulating the Effects of Vortex Shedding," International Journal of Materials, Mechanics and Manufacturing vol. 2, no. 1, pp. 92-95, 2014.

Copyright © 2008-2018. International Journal of Materials, Mechanics and Manufacturing. All rights reserved.
E-mail: ijmmm@ejournal.net