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Ski jump – jet trajectory (1)

Ski jump - jet trajectory (1)


This photo shows a ski jump investigation with circular-shaped flip buckets in a hydraulic model at VAW. The water jet downstream of a flip bucket of radius 0.40 m and deflection angle 30° results from an approach water depth of 0.05 m and an approach flow Froude number of 3. The recirculation flow depth below the jet is about half of the drop height.




Laboratory of Hydraulics, Hydrology and Glaciology (VAW), Swiss Federal Institute of Technology Zurich, Switzerland


Heller, V., Hager, W.H., Minor, H.-E. (2004). Skisprung – Allgemeine Bemessungsansätze. Wasser Energie Luft (7/8): 183-187 (in German). Heller, V., Hager, W.H., Minor, H.-E. (2005). Ski jump hydraulics. Journal of Hydraulic Engineering 131(5): 347-354. Heller, V., Hager, W.H., Minor, H.-E. (2007). Hydraulics of ski jumps. Proc. 32nd Congress of IAHR, Venice, Paper 377: 1-10, IAHR, New York.

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