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Ski jump - flow choking (6)

Ski jump - flow choking (6)

Description

This photo shows a ski jump investigation with circular-shaped flip buckets in a hydraulic model at VAW. Flow choking occurs if the approach flow Froude number is below a certain threshold and a hydraulic jump develops on the flip bucket. Here the flip bucket radius is 0.40 m and the deflection angle 40¬∞. The approach water depth is 0.05 m and the choking Froude number 2.9. The jet impinges close to the takeoff section and may develop a scour hole undermining its foundation.

Date
2004

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

Keywords
Energy dissipation Flip bucket Hydraulic experimentation Jet trajectory Ski jump Spillway

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This web site was launched by Prof. Michele Mossa of the Polytechnic University of Bari (Italy) with the initial support of Fondazione Caripuglia, Bari, Italy for the Research Project LIC-MON of 2003 and of the Project IMCA (Integrated Monitoring of Coastal Areas) financed by MIUR PON D.M. 593/00. Later, the initiative was supported with other Prof. Michele Mossa’s funds, most recently provided by the RITMARE Project.

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