Angels or SFO/aerodynamics of a curvebal

[TurboS7]

Who is going to win game 2. SFO or the angels?Anyone ever dicuss the aerodynamics of a curveball. That would be a great one for avbug to explain.

 

[MetroSheriff]

GO GIANTS!!!!!!!!!!!!!!!!!!

 

[TurboS7]

We flew the Giants for about 4 years. It is amazing how the team really hasn't changed that much. Just a few new pitchers.

 

[bigD]

Turbo - curiously I just wrote a computer program last week that models the trajectories of various baseball pitches (including the curveball) for a class. If you want a detailed explanation, PM me, but the important force in the case of the curveball is the Magnus force, which pushes the ball laterally and is a byproduct of the spin that the pitcher places on the ball.

 

[corky]

Go Angels!!!!


The curve of the ball is a result if the pressure differential caused by the spin of the ball. looking down on top the ball, if it is spinning clockwise the ball will curve left as it moves away from you. The left side of the ball is traveling faster and thus a lower pressure region on the left side than the right causing a net force pulling the ball left

Magnus force??

 

[Flymach2]

Hi...

In addition to corky's post....

The spinning action created when the pitcher releases the ball is the secret behind the curveball. (Although it's no secret). This spinning causes air to flow differently over the top of the ball than it does under the ball. The top of the ball is spinning directly into air and the bottom of the ball is spinning with the air flow. The air under the ball is flowing faster than air on top of the ball creating less pressure, which forces the ball to move down or curve.

This imbalance of force is called the Magnus Effect, named for physicist Gustav Magnus, who discovered in 1852 that a spinning object traveling through liquid is forced to move sideways.

Adding to the air pressure exerted on the ball are the 108 red stitches that hold the cover on the ball. Because they are raised, the stitches increase the amount of friction created as the air passes around the ball and places more air pressure on top of the ball.

Regards

 

[enigma]

Never fails, all of the brainiacs attempt to explain their way around an obvious optical illusion.


8N


BTW. if the spinning causes the path to curve, why is path not constant? If the rotation degrades, then wouldn't the path shallow out, instead of deepening? DK was a magician.










'

 

[bigD]

lol enigma! Although the rising fastball IS actually an optical illusion!

 

[Flymach2]

"If the rotation degrades, then wouldn't the path shallow out, instead of deepening?"

Lol....

The forward velocity decreases quicker than the rotational degradation.

Regards

 

[reaperman]

The spinning action created when the pitcher releases the ball is the secret behind the curveball...

Flymach2,
Are you going to credit your post to the author? Or are you going to claim it's your own work?