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
The important bit here is Pressure = Force/Area
The bigger pipe has 10x the diameter so it holds 100x the water, this means that the weight of the water and the force at the bottom of it is 100x higher than in the narrower pipe
But the bigger pipe also has 100x the area at the bottom so the pressure is the same (100x force)/(100x area)=1x pressure
You could have a super wide pipe and a super narrow pipe and as long as they’re filled to the same height the pressure in both is the same, but the force at the bottom will be wildly different
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