Suction Device

Generate suction power with the wind.

Overview: This is essentially a suction pump. It uses the wind to make a suction within a tube and is part of a larger idea to capture and store kinetic energy as elevated water. We are wanting something simple and cheap to build, minimal parts, zero maintenance, quiet and pleasant to view.

I've spent quite some time trying shapes that generate and collect negative pressure fields to get suction going within a desired position. Taking advantage of the venturi effect is showing promise, however the physical dimensions of a chamber needed is at least 3 meters tall to generate useful mass flow rates (at least 1kg of air per second.)

I have run simulations on the form illustrated above, the result of which are outlined briefly below.

• Ambient wind velocity is 6.7m/sec. (23 km/hr)
• Max velocity in tube is 12.4m/sec
• Static pressure at tube boundary is -107 pascal
• Mass flow rate at tube boundary is 1.17 kg/s through a tube 0.3m dia.

An intimate shape for this purpose has yet to be discovered / realized, however my exercise here is merely to trial the idea and present it as food for more thought.