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Design and development of a climatic wind tunnel for physiological sports experimentation
Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering. (STRC)
Loughborough University, Loughborough, UK.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Management and Mechanical Engineering.
Loughborough University, Loughborough, UK.
2019 (English)In: Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology, ISSN 1754-3371, Vol. 233, no 1, p. 86-100Article in journal (Refereed) Published
Abstract [en]

The aim of this project was to develop a wind tunnel that enables the study of human performance during various types ofsports and physical activities by examining the influence of aerodynamic drag, precipitation, frictional forces and gravitationalforces on uphill and downhill travel on a moving substrate. An overall design for a wind tunnel and working section containinga large treadmill was drafted, followed by computational fluid dynamics simulations of flow conditions to assess thedesign’s feasibility and select from different geometries prior to its construction. The flow conditions in the completed windtunnel were validated using different flows, speeds and treadmill inclinations. Pilot experiments were carried out using across-country skier to investigate the effect of aerodynamic drag on oxygen uptake during double poling and the maximalachieved speed when rolling on a declined treadmill. The purpose was to validate the usefulness of the tunnel. The resultsshowed that flow conditions are acceptable for experiments even in worst-case scenarios with maximal inclined and declinedtreadmill. Results also showed that aerodynamic drag has a significant impact on the skier’s energy expenditure.

Place, publisher, year, edition, pages
2019. Vol. 233, no 1, p. 86-100
Keywords [en]
Aerodynamic drag, biomechanics, computational fluid dynamics, gravitational force, oxygen uptake, physiology, rain, rolling resistance, treadmill
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:miun:diva-34649DOI: 10.1177/1754337118801729ISI: 000460054400010OAI: oai:DiVA.org:miun-34649DiVA, id: diva2:1253992
Funder
Swedish Agency for Economic and Regional Growth, 163382Available from: 2018-10-08 Created: 2018-10-08 Last updated: 2019-03-25Bibliographically approved

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Ainegren, MatsCarlsson, Peter

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  • de-DE
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