2 ms·
It's fairly well accepted that the Bernoulli principle is not the only mechanism of lift today, but it IS a real mechanism, and part of what creates lift in mos
by burnte 11y ago
It's fairly well accepted that the Bernoulli principle is not the only mechanism of lift today, but it IS a real mechanism, and part of what creates lift in most airfoils, is entirely responsible for technologies such as Bernoulli disk drives, and a minuscule factor in things like kites and paper planes (and your hand out the window).
- nether 11y agoThe thing is a lot of people have taken "Bernoulli" to mean "equal time of passage" (a completely made-up, non-physical phenomenon) rather than the quite valid Bernoulli equation: https://en.wikipedia.org/wiki/Bernoulli%27s_principle#Incompressible_flow_equation https://en.wikipedia.org/wiki/Bernoulli%27s_principle#Incomp.... In reality Bernoulli, Newton, and Kutta are just multiple correct abstractions for turning the flow.
- jessaustin 11y agoYou're right, of course. However, the various explanations are suited to different audiences. An aerospace engineer knows everything she needs to know about all of these tools, so she just uses whatever is best suited to a particular situation. For explanation to a general audience who know about force and momentum because they've already seen Newton in other situations, why even bring up "pressure"? I suspect this came about when some dumbass said "well everyone knows about pressure because car tires".