Bernoulli’s Principle seems to say that increased flow velocity causes less pressure. This does make sense, since pressure takes energy and so does motion, so with a fixed amount of energy of course there’s a tradeoff. But in every example I can think of, the opposite seems to be true. If you put your thumb over a hose nozzle, the water goes faster and there’s also increased pressure on your thumb. The higher you turn the water flow, the faster the water flows and the stiffer the hose becomes. What am I missing?
In: Physics
Conservation of energy is the key principle.
If one variable is changed, the other elements must change to compensate. In our case, speed has increased so pressure must drop to keep the energy budget consistent.
It’s mind bending, and whilst I accept this as fact, I don’t intrinsically “get it” either.
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