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 diameter doesn’t matter.
The pressure is the same 1 meter under water if you are in a pool or out in the ocean (if both are equally salty and have the same temperature). The ocean is a lot bigger than a pool but the pressure at depth is the same.
Pressure is force per area.
If you change the size of the area and at the same time change the force at the same rate it cancels out.
Imagine carrying someone on your shoulders. Now there is a second person carrying someone on your shoulders next to you.
In which case where you carrying more? when you were alone or when there were two of you carrying twice the amount?
It equals out.
If you have a bigger pipe you will need more energy to pump water up into it and there will be more force pushing down on the bottom but the pressure stays the same.
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