Hello! I have to deal with flow dynamics and such jokes in school. We have made calculations about the “strudel” or “windhoses” and so on. The 2 examples mentioned are to be presented. So in any case we have reckoned after weeks and tried a lot. With a vortex-like behavior of a medium can be caused with the least energy insane energies in the form of speed. For example in the corresponding movement put l Is a normal 1 litre water bottle emptied in 1.1 seconds. Put the thing on your head and try it without a swirl! So to get to my thought course. I’m just counting on how to make use of it in the intake tract. (I’m not talking about Twisterfilter or something). Has anyone but me ever thought about this?