Bernoulli's Principle

A report on Bernoulli's Principle

Category:

Science & Technology

Tags:

• STI
• Calamba
• Physics

[12powerhouse12]

your equation is wrong, the second half should be P2 and V2 not P1 and V1 again

[slick1120]

@12powerhouse12 yep. i know. just a typo error.

[slick1120]

@12powerhouse12 yep i know. typo error

[Azarien]

Well, it actually happened to me - that is, being hit by a car and flying over it. But I don't remember much of it, I just woke up behind the car. No youtube footage of this incident, though.

To the astonishment of the crowd, which surely hoped that I was dead, I was completely fine.

[aman2arora]

hey you showed the equation

P1+1/2R(rho)v1^2= P1+1/2R(rho)v1^2

but tht is obvious

but eqn should be

P1+1/2R(rho)v1^2= P2+1/2R(rho)v2^2

[LiewDarWin]

wait wait wait isnt the intro music from aperture science?

[g1geo1g]

How can you invoke a principle of conservation when energy is obviously exchanged between the wing leading edge and the air. After that everything according to the Great Bernoulli is circumstantial.

[thebubbac11]

um get it right THIS IS BOYLE'S PRINCIPLE!!!!!!!!!!

[huuhhhuuuhuhuh]

can i have the voice over. lecture of this video? right now? reply me.. thank you

[winterka100]

@eyeammi Yes, I do have a clue, and I do know the function of flaps. Obviously you have no idea the difference between the angle of incidence and the angle of attack as shown by your misquoting of the specifications of the 210. I am only talking about the airfoil in it's simplest form as used in the worn out and blindly accepted theory of lift. Don't bother me with a bunch of impressive?? numbers without explaining what you think they mean.

[eyeammi]

@winterka100 Tsk-Tsk-Tsk. You clearly have no clue. Ever heard of Flaps? Any idea what they do? They increase the camber, Lift & Drag; & decrease stall speed. Regardless, the 210 weighs 3800 lb max, uses a naca 64A215 airfoil at about 5 deg incidence. The clean airfoil (no flaps) produces a Cl ~0.7 at 5 deg. The wing area is 175 ft^2. Thus Vto = ~160 ft/sec or 110mph at sea level standard day conditions. At zero wing incidence, Vto = 220 mph which just so happens to be the 210's cruise speed.

[dragonfirelee]

Thank you for this vid! As an engineering student, i find this so helpful! Very well explained and great examples of application.

[FabFubar]

A more elaborate version of the Bernoulli equasion also takes a height difference into account. It goes like:

P1 + 1/2 * (ro)(v1)² + (ro) g (y1) = P2 + 1/2 * (ro)(v2)² + (ro) g (y2) with (ro) the density of the fluid and g = 9.80 m/s². y2 - y1 is the height difference. Torricelli was proven right by the above equation, but the one in the video wouldn't have been able to do that, for example.

Just sayin'

[winterka100]

This worn out theory of lift consists mainly of hot air.