First, 1:52 your 3D printed valve doesn't look the same as the computer model previously shown 1:42 , which looks more like Tesla's illustrations for his Valvular Conduit patent. The 3D print has obstructed flow in both directions instead of the straightened path in his original design, so your differences in flow won't be as dramatic between forward and reverse flow. Second, it was designed for a steam engine Tesla was working on, so it was meant for high flow applications which were probably time dependent since it won't completely stop flow like a check valve. At slow flow rates it will flow equally both ways, but at high flow rates it will flow easy one way and the other way is very restricted by turbulence introduced through the loops.
To add to that, while in the first example the water left the container both at the same time, it took longer for the water to leave the valve completely.
First, 1:52 your 3D printed valve doesn't look the same as the computer model previously shown 1:42 , which looks more like Tesla's illustrations for his Valvular Conduit patent. The 3D print has obstructed flow in both directions instead of the straightened path in his original design, so your differences in flow won't be as dramatic between forward and reverse flow.
Second, it was designed for a steam engine Tesla was working on, so it was meant for high flow applications which were probably time dependent since it won't completely stop flow like a check valve. At slow flow rates it will flow equally both ways, but at high flow rates it will flow easy one way and the other way is very restricted by turbulence introduced through the loops.
To add to that, while in the first example the water left the container both at the same time, it took longer for the water to leave the valve completely.
It's very amazing video, thanks!