barrel science

[ChiZZerS]

i have been looking at barrels and this is a question i should
know by now..

what is the science of them.. like what is the point in the holes round the side and stuff like that.

thanx

 

[Collier]

Originally posted by Sephiroth
i have been looking at barrels and this is a question i should
know by now..

what is the science of them.. like what is the point in the holes round the side and stuff like that.

thanx

porting is to disperse the gas creating a quieter shot.

Paul.

 

[jahlad]

and also to some extent relieve pressure behind the ball once it is moving to reduce the 'wobble' in the paint

 

[Zwitta]

Its also...

to reduce the pressure of the gas that builds up infront of the paintball just after its shot... let me go into this in a little more detail :

when a paintball is fired from a barrel with no porting (i.e. a stock sabotage barrel) the ball moving forward at such a velocity pushes the air infront of the paintball and compresses it momentairily, this creates a cushion of (slightly) compressed air infront of the paintball. This can cause terrible things to the trajectory of the paintball. Porting allows the air infront of the paintball to escape in a "controlled" manner in an attempt to prevent this cushion of air from building up, and therefore allowing a more accurate shot.

In addition, as jahlad stated, porting allows the gas behind the paintball to disperserse in a less "explosive" fashion, therefore allowing a quieter shot, and less wobble.

Hope that helps

Zwit

 

[ChiZZerS]

Its also...

Originally posted by Zwitta
to reduce the pressure of the gas that builds up infront of the paintball just after its shot... let me go into this in a little more detail :

when a paintball is fired from a barrel with no porting (i.e. a stock sabotage barrel) the ball moving forward at such a velocity pushes the air infront of the paintball and compresses it momentairily, this creates a cushion of (slightly) compressed air infront of the paintball. This can cause terrible things to the trajectory of the paintball. Porting allows the air infront of the paintball to escape in a "controlled" manner in an attempt to prevent this cushion of air from building up, and therefore allowing a more accurate shot.

In addition, as jahlad stated, porting allows the gas behind the paintball to disperserse in a less "explosive" fashion, therefore allowing a quieter shot, and less wobble.

Hope that helps

Zwit

 

[Collier]

Its also...

Originally posted by Zwitta
to reduce the pressure of the gas that builds up infront of the paintball just after its shot... let me go into this in a little more detail :

when a paintball is fired from a barrel with no porting (i.e. a stock sabotage barrel) the ball moving forward at such a velocity pushes the air infront of the paintball and compresses it momentairily, this creates a cushion of (slightly) compressed air infront of the paintball. This can cause terrible things to the trajectory of the paintball. Porting allows the air infront of the paintball to escape in a "controlled" manner in an attempt to prevent this cushion of air from building up, and therefore allowing a more accurate shot.

In addition, as jahlad stated, porting allows the gas behind the paintball to disperserse in a less "explosive" fashion, therefore allowing a quieter shot, and less wobble.

Hope that helps

Zwit

No it doesn't. there is no 'cushion of air in front of the ball. I believe Tom Kaye proved this using smoke and a hi-speed camera.

Paul>

 

[Albercent]

i supose he cut a section out of the barrel to take the pic?

 

[HERMITT]

There is also a vacuum created behind the ball as the air flows over it and fails to fill the void directly behind the moving ball. In in artillery this is compensated by having an explosive mixture rease gas into this space, in paintball the space is filled by allowing air to be drawn in through the porting. The porting, like jahlad said also stops ball wobble by allowing the pressure infront of and beind the ball to equalise. This creates a more efficient, stable trajectory.

 

[Collier]

Originally posted by Albercent
i supose he cut a section out of the barrel to take the pic?

No he had smoke in front of the barrel, shot a ball. the smoke was only disturbed by the ball not by any air infront of the ball.

Paul.

 

[Philip]

Originally posted by HERMITT
There is also a vacuum created behind the ball as the air flows over it and fails to fill the void directly behind the moving ball. In in artillery this is compensated by having an explosive mixture rease gas into this space, in paintball the space is filled by allowing air to be drawn in through the porting. The porting, like jahlad said also stops ball wobble by allowing the pressure infront of and beind the ball to equalise. This creates a more efficient, stable trajectory.

Im pretty sure thats not true, is there not enough air coming out of your tank to fill in that 'vacuum'