Originally Posted by
blind pew
Just taught many moons ago to be precise especially when instructing…now that Bernoulli has been discredited and triplex systems are unnecessary glad I don’t work anymore.
Originally Posted by
michaelbinary
Bernoulli has not been discredited at all.
When you apply his equations to problems in the right context they work perfectly.
Bernoulli equations calculate the pressure drop when some part of a fluid flows faster, this is true the pressure does drop, but trying to apply this to explain why an aerofoil produces lift is flawed because the theory of why an aerofoil produces life was flawed in the first place as the principal of equal transit times has been shown to be false.
BP, fair comments, MB is also correct that Bernoulli's equations give correct answers, but the conceptual Bernoulli model is incorrect at a detail level. For a single element foil or single body, Bernoulli is good enuff, it gets all squirrelly with multi element foils or dealing with separated flow conditions where some magic can happen.