Citazione:
Originalmente inviato da Ste41  |
fantastico!
grazie!
l'importante è che se la siano bevuta agli esami!!!
sentire la stessa cosa per 15 anni...oramai l'avevo presa per buona!
ad un esame pratico un docente mi chiese perchè un aereo volasse..iniziai con la solita tiritera..BLA BLA BLA..mi fermò e disse..
vola perchè ha le ali.
saluti
dimenticavo...preso dal tuo articolo..
{The upper flow is faster and from Bernoulli's equation the pressure is lower. The difference in pressure across the airfoil produces the lift.} As we have seen in Experiment #1, this part of the theory is correct. In fact, this theory is very appealing because many parts of the theory are correct. In our discussions on pressure-area integration to determine the force on a body immersed in a fluid, we mentioned that if we know the velocity, we can obtain the pressure and determine the force. The problem with the "Equal Transit" theory is that it attempts to provide us with the velocity based on a non-physical assumption as discussed above.