Visualization of a hydrodynamic fish lift
How does a ‘fish lift’ work? This technical animation (which makes nice use of Blender’s physics) tells you how! The video is for a crowdfunding campaign which has already been 500% funded, impressive!
Wolfgang Rechberger writes:For a crowdfunding promo video we where proud to produce a short sequence which demonstrates the
functionality of the hydrodynamic fishlift. This facility, based on the Archimedean screw allows fish and water organisms to pass structures spanning across rivers, while producing electric energy at the same time.
So … a fish escalator? Now we’ll have fat, lazy fish that refuse to go up steps live every other aquatic animal.
You might be right. I’m not sure if fitness aspectes went into the design :)
It’s a nice idea, but I see a flaw in the fact that bigger fish might get stuck thus leading to lawsuits (like when they shut down a dam killing hundreds of farms just to save a 1″ fish getting stuck)
you can have a entry hole before they enter that is only big enough for the fish that can fit in the lift, preventing larger fish from getting in and breaking things. By the way i saw a story on tv recently that they are using a ‘salmon canon’ which is literally like a huge vacuum that sucks the salmon from downstream and shoots them upstream through a long flexible pipe, so very similar contraption, but a lot more entertaining for the fish :)
I searched the web for “salmon cannon” and found this video:
http://www.youtube.com/watch?v=wSBS2F9VXaE
The company behind it is called Whooshh Innovations. :)
the part where the screw starts needs to be designed carefully otherwise you’ll get sliced and diced fish
That’s really nice, now if they had a fluid surfacer, I’m sure that’d look way better.
ehm if i walk outside i can picture a structure just like this, is it re-invented ?
The idea itself was used in the Netherlands in the past in combination with mills. as this particulair structure allows for deeper pumping. But its a nice render,.. i’m curious as how it would render with metabals and then rendered as volumes.
Water doesn’t bead up and this CFD model reallly needs work. If your goal was to show a laminar flow colliding with a turbulent flow being displaced by a ladder you haven’t shown it.
They just did a particle simulation with physics set to “Fluid”; they’re using SPH, not CFD. It would look a lot nicer with an actual fluid surface, but seeing as the point is fish transportation, not water transportation (it would just be an Archimedes screw), the SPH model is probably sufficient.