A fun use of a hydraulic jump - Dan Rodger

July 26, 2016

Whilst in Munich, Germany, I stopped by to see the famous Eisbach – a standing wave capable of being ridden by surfers.  The wave is formed as the fast moving water discharging from the manmade channel slows because of the downstream water, causing a hydraulic jump.  The shape of the wave has been improved by engineers over the years by adding concrete blocks downstream of the bridge, and tying boards to the upstream side – the latter able to be seen in the video.  These boards have had a smoothing effect on the water, leading to the ridable wave even when the flow is low.  We were told the sheet flow was only about 0.4m deep, meaning it isn’t the best place to fall off the wave.  Never-the-less, being able to surf 500km from the nearest coastline makes it a popular feature.  

To view the video, click here




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