Disturbance initiated by convergent riblet in flat plate boundary layer

T. Nadesan, Hatsari Mitsudharmadi, T. S. Lee, S. H. Winoto

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

Abstract

The characteristics of the disturbance initiated by convergent riblet, in the form of streamwise counter-rotating vortices, is examined experimentally using hot-wire anemometry. The parameter considered is riblet height to Blasius boundary layer thickness of 0.5. The turbulent intensity contours and the frequency spectrum reveal that the streamwise counter-rotating vortices are already at the verge of breakdown. The possible path towards the breakdown of the structures has also been discussed.

Original languageEnglish (US)
Title of host publicationProceedings of the 19th Australasian Fluid Mechanics Conference, AFMC 2014
PublisherAustralasian Fluid Mechanics Society
ISBN (Electronic)9780646596952
StatePublished - Jan 1 2014
Event19th Australasian Fluid Mechanics Conference, AFMC 2014 - Melbourne, Australia
Duration: Dec 8 2014Dec 11 2014

Publication series

NameProceedings of the 19th Australasian Fluid Mechanics Conference, AFMC 2014

Other

Other19th Australasian Fluid Mechanics Conference, AFMC 2014
CountryAustralia
CityMelbourne
Period12/8/1412/11/14

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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