Hydraulics question, with a tapered pipe. If I put the wide end into a river and have the narrow end raised...
above the level of the water, will the river force some water to flow uphill, out the open end, especially since the pipe is narrower at the upper end?
Since water is incompressible, would this be a physically feasible way of raising water a small distance to fill a small pond or large basin? I realize I'll have to put a filter to remove algae, etc.
I don't have the resources to build a mill pond like for an overshot wheel. (This is for a remote site where no electricity or gasoline for a pump is available, but the river current and the pipe are already there.)
I only want to lift the water about fifteen feet max and I don't need a very large rate of flow, maybe three or four gallons per minute. The pipe is about 40 feet long and has a uniform conical taper from 8 inches to 3&1/2 inches. Is there an equation I can use to calculate this?
If this isn't clear, please let me know and I'll add more details.
Thanks to everybody who answers!
3 MAY 08, 1748 hrs, GMT
Head Loss (pressure loss due to elevation change) is going to be a bit of 6 psi. (0.433 psi per foot). That's a lot to expect to overcome. Unless you have a really fast moving river (you will be converting velocity pressure to overcome the head loss and the friction in the pipe, fittings, filter, etc.), this sounds like a no-go project. I could be wrong, it's just a gut feeling.
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