Fish tank stopper

Inland paddling
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waverley610
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Fish tank stopper

Post by waverley610 » Fri Feb 19, 2016 11:40 am


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Big Henry
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Re: Fish tank stopper

Post by Big Henry » Fri Feb 19, 2016 1:29 pm

Theh theh theh theh theh theh Boutros Boutros-Ghali, theh theh theh theh Glenn Hoddle. Scorchio!

Actually, this is an interesting and useful demonstration of hydrodynamics, despite not understanding a word he said. Thanks for posting.

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waverley610
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Re: Fish tank stopper

Post by waverley610 » Fri Feb 19, 2016 8:37 pm

Yeah, don't need words to get it but how'd he get a model of the exact scale that you actually feel when caught recirculating?!

BobbyR
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Re: Fish tank stopper

Post by BobbyR » Tue Feb 23, 2016 6:17 pm

Nice. I always use this demonstration below on the theory of hydraulic jumps ('stopper' being another name for a type of hydraulic jump) although a bit focused on weir safety engineering at the end. Most demonstrations online are related to drop structures or low head dams (weirs) but the principle applies to whitewater kayaking as well. Water basically going through a choke point, steep section or over a rock. The behaviour is the same.


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DaveBland
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Re: Fish tank stopper

Post by DaveBland » Tue Feb 23, 2016 9:57 pm

I enjoyed both of those a little more than I should have done.
dave

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