Bicycle helmets-are low drag and efficient cooling mutually exclusive
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(Published version)
Date
2018
Authors
Fitzgerald, S.
Atkins, H.
Kelso, R.
Dimitriou, A.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
Proceedings, 2018, vol.2, iss.6, pp.212-1-212-6
Statement of Responsibility
Shaun Fitzgerald, Henry Atkins, Richard Kelso and Alexandre Dimitriou
Conference Name
International Sports Engineering Conference (ISEA conference) (26 Mar 2018 - 29 Mar 2018 : Brisbane, Australia)
Abstract
An aerodynamic study was conducted on eleven high-end ‘aero-road’ helmets with the aim of determining whether a helmet can simultaneously have low drag and efficient cooling. The aerodynamic drag of each helmet was measured using a custom-built cycling manikin at a velocity of 40 km/h with a yaw angle range of 0° to ±25° and at velocities of 50 and 58 km/h at 0° yaw. Thermal testing of the cooling abilities of each helmet was conducted with a custom-built heated mannequin headform, which incorporated 36 thermocouples embedded within its surface. Contour plots of the temperature distributions over the head were created together with images obtained by a thermal camera. The results demonstrate that all the aero-road helmets are generally as cool as each other, however, there can be significant differences in the aerodynamic drag.
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Dissertation Note
Provenance
Description
Published: 22 February 2018
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© 2018 by the authors; Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).