Quizzes & Puzzles7 mins ago
sticky shower curtains
Why does my shower curtain fly inwards when I shower? And, more importantly, how can it be prevented?
;-)
Answers
No best answer has yet been selected by estie. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.Many years ago this was the subject of much correspondence in the Scientific American. I recall that the most convincing explanation is that since there is a downflow of air within the enclosed space (the water drags the air with it) then the pressure will be less than that of the static air outside. It's all down to Bernoulli, see the link: http://home.earthlink.net/~mmc1919/venturi.html
I suspect it's the same reason that teapot spouts dribble back against themselves (unless it has a small hole through the material near the end); does anyone else have a thery on this??
How did you find that site??? Yes, it looks like it's a combination of effects, with the vortex dominating. The only doubt which I have is that the shower shown is aimed down at quite a shallow angle - this would favour the formation of a vortex, but if (like me) you try to arrange the stream to be vertical from above your head, then I can't see how a vortex is likely to form. Perhaps I won't have a bath tonight after all - I'll just have to arrange a smoke generator before bedtime!
Anyway, non of this solves your more importaant question - how to stop it. Perhaps I will take bath, after all!.
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