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The relationship between the type of machining of the ski running surface and its wettability and capillary drag
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
2010 (English)In: Sports Technology, ISSN 1934-6182, E-ISSN 1934-6190, Vol. 3, no 2, p. 121-130Article in journal (Refereed) Published
Abstract [en]

This paper considers the mechanically treated dry ski running surface. The difference in the shear wettability of ski running surfaces treated using different types of machining was studied by measuring the advanced and receding contact angles on two different ski base materials. The hypothesis regarding relationship between the shear wettability and the capillary drag of ski running surface have been presented. The study found, that ski running surfaces with a lower roughness (e.g. flattened by a steel drum or sliced) have a lower wettability factor and seem to be more effective in reducing capillary drag under homogenous wetting conditions.

Place, publisher, year, edition, pages
2010. Vol. 3, no 2, p. 121-130
Keywords [en]
Ski base, stone grinding, capillary drag, contact angle
National Category
Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:miun:diva-11523DOI: 10.1080/19346182.2010.538399Scopus ID: 2-s2.0-85008848754OAI: oai:DiVA.org:miun-11523DiVA, id: diva2:319307
Available from: 2010-05-17 Created: 2010-05-17 Last updated: 2017-07-03Bibliographically approved
In thesis
1. Interfacial kinetic ski friction
Open this publication in new window or tab >>Interfacial kinetic ski friction
2010 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

It is no doubt, that the ski glide over the snow is a very complicated object of

research. However, ski glide is just a one area of many other areas of human

knowledge. As a rule, the scientists and practitioners, who work in these areas,

operate with some publicly expressed more or less solid hypotheses. These

researchers work with one hypothesis until another and a better one comes up.

Our literature studies and our own observations regarding modern skis

preparations, did not give us any solid hypotheses, which are able to explain the

actual form and content of this procedure. The present work is an attempt to reveal

such hypotheses.

Conclusion: To achieve an optimal glide on skis with the base (the ski sole)

made of some high hydrophobic durable polymer, e.g. UHMWPE, PTFE; we only

have to create an adequate topography (texture) on the ski running surface,

adequate to the actual snow conditions.

 

Place, publisher, year, edition, pages
Östersund: Mittuniversitetet, 2010. p. 40
Series
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 88
Keywords
ski glide, ski base, ski wax, hydrophobicity, UHMWPE, PTFE, topography
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:miun:diva-11525 (URN)978-91-86073-79-4 (ISBN)
Public defence
2010-06-15, F234, Campus Östersund, Östersund, 10:15 (Swedish)
Opponent
Supervisors
Available from: 2010-05-17 Created: 2010-05-17 Last updated: 2010-05-17Bibliographically approved

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Kuzmin, LeonidCarlsson, PeterTinnsten, Mats

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