|MadSci Network: Physics|
I understand the basic physics of syphons and how they work, including the description in MadSci's database. However, I wonder about extreme cases such as this: If I use a VERY long siphon tube, then is there a limit (theoretical or experimental) to how high the syphon tube can stretch (before coming back down) and still have a functioning syphon? For example, let's say the water reservoir is one foot above the destination tank. Would a syphon still work if I used a tube 200 feet long and drew it up 100 feet then down to the destination tank? What if I used a tube 1,000 feet long which rose nearly 500 feet into the sky? Or, would there be some factor which limits the height of the highest point of the syphon tube? I can iamgine that secondary factors might limit this height in a functioning syphon. For example, turbulance in the water flow might increase the "resistance" experienced by the stream of water. Or, the sheer mass or volume of water which needs to move might approach a practical limit. As the syphon goes higher, must the diameter of the tube increase to compensate for factors dealing with fluid dynamics? To take this idea to the extreme, could a syphon stretch miles high and into space, where there is reduced or zero gravitational pull? Thanks for any comments or feedback: it seems like an interesting, if useless, idea to explore.
Re: Is there a limit to how high a syphon can stretch and still work?
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