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Old 09-23-2009, 04:32 PM   #57 (permalink)
JPTrucker
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whirlpool

Why not just use a solid piece of material (cardboard for starters) and then just put say 1" holes in it, evenly spaced. The idea being that at low speed you still have air coming in but at higher speed the air has to "whirlpool" around like water down a drain. All the air can't get in through the hole at the same time and that could be your airflow limiter.

What made me think of it was watching the PBS show about how apparently all galaxies have a black hole in their center. When a large amount of matter tries to get into the "event horizon" - that is to say enter the hole, that matter starts whirlpooling around since it can't all enter at once.

If 1" holes are too big or small then try smaller or larger or space the holes closer together. Surely would be easier to fabricate.
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