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Originally Posted by 6techniques "Bernoulli's Principle states that as the speed of a moving fluid increases, the pressure within the fluid decreases."
Well, that was interesting and that pipe demo was cool...but one thing Im not getting is how exactly pressure INCREASES as a smaller pipe/hose goes into a LARGER pipe/hose...I would think the pressure would actually drop due to the increased diameter of the pipe/hose. |
Well, velocity drops, so pressure does the opposite and rises. However, pressure does not rise as much as velocity drops, they are not inversely proportionate. The mass flow rate is still the same in both sections of the pipe since it is an incompressible fluid flow analysis. If you want to look at the numerical proof, there are a couple links on that page that explain it. One of the links actually describes it without any numbers.