Hello everyone.
I have a question, which I have no idea how to search for, regarding pressure.
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1 bar is equal to roughly 10 metres of water
If I have 2 different pipes with water, first is Ø10cm and second is Ø10m, will both have 10 metres of water with 1 bar or will they be different?
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The way I understand it, bar is “overpressure” (or underpressure), which means both pipes will have 10 metres of water with 1 bar, but the bigger pipe requires more energy to get to 1 bar, compared to the smaller pipe.
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I’m really bad at explaining, sorry for that.
In: 1
Pressure is determined solely by depth.
So yes, your 10cm diameter pipe and your 10m diameter pipe would have the same water pressure at the bottom when they have the same depth of water.
Water pressure is essentially the weight of all the water ABOVE the point that you are measuring at, the water to the sides doesn’t matter. So it doesn’t matter how wide your pipe is, if you’re 10m underwater it will be the same water pressure.
Remember that essentially
pressure = weight(force) / area.
So yes making a bigger pipe mean the total weight of the water is more, but there’s also a bigger area at the bottom holding that weight.
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