New rod differential

[Feliks]

Originally Posted by jetman150

Can you use it to sipe out wind from pressure areas? Say where there is interference, or where you might be able to use low pressure to create differentials for benefit?

So somehow luckily it happened, that we have such animations ... I did not have to do a lot of research

[YT]z1QOp_9IWLc[/YT]
https://www.youtube.com/watch?v=z1QOp_9IWLc



The wings are slots having a height of 2 mm and a length of 600 mm. or surface fissures through which you get negative pressure to the inside wing is 1200 mm ^ 2. Jarobiac the first model of this wing, I wanted to somehow very simple and cheap execute it. To derive this vacuum, I used a disposable syringe of 20 cc. It inside diameter of 22 mm .. or its surface, is 380 mm ^ 2. As you can see this is the narrowest section, which has to overcome the aerodynamic resistance of the vacuum. This section is very unfavorable, because it is up to 1200/380 = 3.15 lower than the inlet gap .. He should be at least equal to the area of ??the gap, or three such tubing from a syringe .And we have only one wing. Despite this, the fan, which is for the help transition to a higher diameters, ie D = 36 mm or 1017 mm surfaces ^ 2 ie more than two times greater than the tube Inlet, rotates, already at 4 m / sec ..and I think that this it is all very good, despite the primitive prototype, but the first on .. But it proved that way then you should follow..

Andrew