A phase-averaged analysis of the pedalling cyclist wake

T. N. Crouch, D. Burton, M. C. Thompson, D. T. Martin, N. A.T. Brown, J. Sheridan

Research output: A Conference proceeding or a Chapter in BookConference contribution

4 Citations (Scopus)

Abstract

For a posture and pedalling frequency representative of an elitelevel time-trialist, wind tunnel experiments show, perhaps for the first time, the changes to the wake flow topology over the course of a dynamic pedal stroke. Velocity field measurements are made in the wake of a full-size pedalling (100 RPM) mannequin in a time-trial position sitting on a bicycle. Using a phase-averaged approach, the wake structures passing through a downstream measurement plane are analysed as a function of crank cycle and are compared with similar wake measurements taken for static leg positions at fixed crank angles. It is found that the same fundamental fluid mechanisms that lead to the formation of the large-scale flow structure variants and wake asymmetries are consistent for both quasi-steady and dynamic pedalling conditions.

Original languageEnglish
Title of host publicationProceedings of the 19th Australasian Fluid Mechanics Conference
Place of PublicationAustralia
PublisherAustralasian Fluid Mechanics Society
Pages1-4
Number of pages4
ISBN (Print)9780646596952
Publication statusPublished - 1 Jan 2014
Event19th Australasian Fluid Mechanics Conference, AFMC 2014 - Melbourne, Australia
Duration: 8 Dec 201411 Dec 2014

Conference

Conference19th Australasian Fluid Mechanics Conference, AFMC 2014
CountryAustralia
CityMelbourne
Period8/12/1411/12/14

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Crouch, T. N., Burton, D., Thompson, M. C., Martin, D. T., Brown, N. A. T., & Sheridan, J. (2014). A phase-averaged analysis of the pedalling cyclist wake. In Proceedings of the 19th Australasian Fluid Mechanics Conference (pp. 1-4). Australia: Australasian Fluid Mechanics Society.