bernoulli's principle

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adriannewey9864
adriannewey9864
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bernoulli's principle

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can someone please describe to me with a series of diagrams bernoulli's principle in detail, and its application to aerodynamics, car aerodynamics, f1 aerodynamics, jet/aviation aerodynamics, engineering, any other application...
many thanks :D :)
p.s. equations are welcomed !!!

Jersey Tom
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Re: bernoulli's principle

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Here's a start.
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flynfrog
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Re: bernoulli's principle

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or you could do your own home work

adriannewey9864
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Re: bernoulli's principle

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flynfrog wrote:or you could do your own home work
where from, ive tried everywhere

wesley123
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Re: bernoulli's principle

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flynfrog wrote:or you could do your own home work
:lol:
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MrCodyWeston
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Re: bernoulli's principle

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Wolfram Alpha is a GREAT resource!
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olefud
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Re: bernoulli's principle

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Jersey Tom
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Re: bernoulli's principle

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adriannewey9864 wrote:
flynfrog wrote:or you could do your own home work
where from, ive tried everywhere
You obviously didn't click my link as it has a pretty good run down.
Grip is a four letter word. All opinions are my own and not those of current or previous employers.

shamikaze
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Re: bernoulli's principle

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Tom,

I'll be using that trick a LOT from now on to educate my co-workers ;)

Thanks, you made me smile =D>

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Shepard
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Re: bernoulli's principle

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Even though the subject has been dead for a while, there are still people who peek here so I thought I'd give a hand to those still looking. In so called telegraphical shortcut:

Bernoulli's Principle

What do jet airplanes and a baseball pitcher's curveball have in common? They both depend on Bernoulli's principle for their operation. Bernoulli's principle states that the faster a fluid (such as air or water) flows over a surface, the less pressure the fluid exerts on that surface.

In the case of the jet airplane, air travels faster over the top of the wing than across the bottom of the wing. Since the pressure on top of the wing is reduced, the airplane is pushed upward. A pitcher can cause a baseball to curve by making it spin. On one side of the ball, air carried along by the spinning ball rushes past in the same direction the ball is traveling. On the other side of the ball, air is pushed in the opposite direction. On the side of the ball where air is traveling faster, pressure is reduced. Higher air pressure on the opposite side of the ball pushes it out of a straight path, causing it to curve.

Read more: http://www.scienceclarified.com/A-Al/Ae ... z3AkL1oMiz

olefud
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Re: bernoulli's principle

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It’s simple enough to learn from the above sources. But keep in mind that the principle deals with incompressible fluids –OK for low speed gases- and free flow, i.e. no boundary layer.

thepowerofnone
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Re: bernoulli's principle

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Shepard wrote:Even though the subject has been dead for a while, there are still people who peek here so I thought I'd give a hand to those still looking. In so called telegraphical shortcut:

Bernoulli's Principle

What do jet airplanes and a baseball pitcher's curveball have in common? They both depend on Bernoulli's principle for their operation. Bernoulli's principle states that the faster a fluid (such as air or water) flows over a surface, the less pressure the fluid exerts on that surface.

In the case of the jet airplane, air travels faster over the top of the wing than across the bottom of the wing. Since the pressure on top of the wing is reduced, the airplane is pushed upward. A pitcher can cause a baseball to curve by making it spin. On one side of the ball, air carried along by the spinning ball rushes past in the same direction the ball is traveling. On the other side of the ball, air is pushed in the opposite direction. On the side of the ball where air is traveling faster, pressure is reduced. Higher air pressure on the opposite side of the ball pushes it out of a straight path, causing it to curve.

Read more: http://www.scienceclarified.com/A-Al/Ae ... z3AkL1oMiz
Maybe this website could have used a better example... I wouldn't want to learn it like this, that's for sure, because when you get a little deeper into aerodynamics you will see that this above example is a really poor use of Bernoulli's principle.

Bernoulli's principle is extremely limited, but is a great starting point. Its main limitations are that the fluid must be incompressible and inviscid (and irrotational but those first two conditions guarantee that this is also true); the example of the baseball entirely relies on viscosity to produce the effect mentioned, so straight away Bernoulli's cannot be applied.

xpensive
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Re: bernoulli's principle

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I's not as much principle as a law;

The sum of Dynamic and Static pressure in a moving fluidum is constant, bar for losses.
"I spent most of my money on wine and women...I wasted the rest"

autogyro
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Re: bernoulli's principle

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xpensive wrote:I's not as much principle as a law;

The sum of Dynamic and Static pressure in a moving fluidum is constant, bar for losses.
What, you mean like the law of Moses or Sharia law? :cry:

xpensive
xpensive
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Re: bernoulli's principle

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autogyro wrote:
xpensive wrote:I's not as much principle as a law;

The sum of Dynamic and Static pressure in a moving fluidum is constant, bar for losses.
What, you mean like the law of Moses or Sharia law? :cry:
More like Hooke's law, if you might be familiar with that?
"I spent most of my money on wine and women...I wasted the rest"