Some experiments were performed to determine the effect on the friction coefficient of a little temperature increase caused by a small electrical resistance inserted in different ways in a ski or a ski-like device. It appears that at a low speed, this warming is able to reduce significantly the friction coefficient. The conditions of the experiments cover only reduced speed and temperature intervals. A possible interpretation of this phenomenon is based on the modification of the quasi-liquid layer existing on the surface of snow at temperatures higher than −30°C. A wider set of parameter conditions should be analyzed to confirm this interpretation.

Effects of Ski Warming on Ski-snow Friction: Some Preliminary Results / Della Volpe, Claudio; Siboni, Stefano; Biasi, Roberto; Saccardo, Umberto. - In: SURFACE INNOVATIONS. - ISSN 2050-6252. - STAMPA. - 10, (2022):6(2022), pp. 411-421. [10.1680/jsuin.22.01018]

Effects of Ski Warming on Ski-snow Friction: Some Preliminary Results

Della Volpe, Claudio;Siboni, Stefano;
2022-01-01

Abstract

Some experiments were performed to determine the effect on the friction coefficient of a little temperature increase caused by a small electrical resistance inserted in different ways in a ski or a ski-like device. It appears that at a low speed, this warming is able to reduce significantly the friction coefficient. The conditions of the experiments cover only reduced speed and temperature intervals. A possible interpretation of this phenomenon is based on the modification of the quasi-liquid layer existing on the surface of snow at temperatures higher than −30°C. A wider set of parameter conditions should be analyzed to confirm this interpretation.
2022
6
Della Volpe, Claudio; Siboni, Stefano; Biasi, Roberto; Saccardo, Umberto
Effects of Ski Warming on Ski-snow Friction: Some Preliminary Results / Della Volpe, Claudio; Siboni, Stefano; Biasi, Roberto; Saccardo, Umberto. - In: SURFACE INNOVATIONS. - ISSN 2050-6252. - STAMPA. - 10, (2022):6(2022), pp. 411-421. [10.1680/jsuin.22.01018]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/357245
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