 |
10-24-2012, 10:16 PM
|
#1
|
|
titular
Join Date: Jan 2012
Location: Atlanta, GA
|
Minimum Pressure/Velocity to fire a paintball
Made this graph out of curiosity and thought it was interesting and wanted to share it.
I don't have all of the math, but it's mostly just conversions.
 |
|
|
|
10-24-2012, 10:17 PM
|
#2
|
|
Check your math.
Join Date: Nov 2005
Location: Not what you think
|
okay
__________________
ST:Tech- We write Haikus. Also, THE PLAGUE
2001 Viggen // Stage 1 Oil Injection // Stage 3 Exhaust Leak // Wet Clutch Mod
"Originally posted by randomdean: I'm not overweight"
|
|
|
|
|
10-24-2012, 10:44 PM
|
#3
|
|
.
Join Date: Oct 2010
Location: central california
|
this would appear to be an exponential function graphed in excel
|
|
|
|
|
10-24-2012, 11:08 PM
|
#4
|
|
Valleys Of Neptune
Join Date: Mar 2012
Location: Chicago
|
okay
|
|
|
|
|
10-24-2012, 11:25 PM
|
#5
|
|
Captain Strobe
Join Date: Dec 2005
Location: Butts
|
Quote:
Originally Posted by tyronejk
and thought it was interesting
|
yeah, see, here's the thing...
it isn't.
__________________
ST:Tech -- We're so helpful.
|
|
|
|
10-24-2012, 11:33 PM
|
#6
|
|
asmuchtextastheywillallow
Join Date: Sep 2005
Location: Kansas City
|
I'm not sure what this is based upon. The minimum force to move a paintball would be the force to overcome the static friction, normal force, weight, and other factors.
all you did was compare
well I can't really tell what that volume is based on
|
|
|
|
|
10-25-2012, 06:55 AM
|
#7
|
|
titular
Join Date: Jan 2012
Location: Atlanta, GA
|
Quote:
Originally Posted by Volucris
I'm not sure what this is based upon. The minimum force to move a paintball would be the force to overcome the static friction, normal force, weight, and other factors.
all you did was compare
well I can't really tell what that volume is based on
|
No, this is the minimum energy needed to fire a paintball, not the force. Pressure times volume equals energy (ideal gas law).
This is assuming zero friction between the bolt and the breech as well as between air molecules. Hence, the "minimum."
BTW, normal force and weight are negligible factors in a paintball gun. |
|
|
|
|
10-25-2012, 08:06 AM
|
#8
|
|
PoopScooper
Join Date: Apr 2008
Location: Wisco
|
-2 you didn't have a title for your graph
|
|
|
|
|
10-25-2012, 09:27 AM
|
#9
|
|
Check your math.
Join Date: Nov 2005
Location: Not what you think
|
Quote:
Originally Posted by Ryan3773
-2 you didn't have a title for your graph
|
__________________
ST:Tech- We write Haikus. Also, THE PLAGUE
2001 Viggen // Stage 1 Oil Injection // Stage 3 Exhaust Leak // Wet Clutch Mod
"Originally posted by randomdean: I'm not overweight"
|
|
|
|
|
10-25-2012, 09:36 AM
|
#10
|
|
Where's my boomstick?!
Join Date: Sep 2005
Location: Keesler AFB, MS
|
Quote:
Originally Posted by Ryan3773
-2 you didn't have a title for your graph
|
Who are you kidding? Thats a failed test! F-! |
|
|
|
|
10-25-2012, 11:26 AM
|
#11
|
|
The fluffy snake player
Join Date: Nov 2006
Location: BRODAK
|
Quote:
Originally Posted by tyronejk
No, this is the minimum energy needed to fire a paintball, not the force. Pressure times volume equals energy (ideal gas law).
This is assuming zero friction between the bolt and the breech as well as between air molecules. Hence, the "minimum."
BTW, normal force and weight are negligible factors in a paintball gun.
|
Why don't you just use van deer waals equation of state and do it properly? Also
P*V = nRT which isn't the energy however you could use pressure × DV for the work. Physical chemist here.
__________________
MINOT MILITIA XBL: XXXmilitiamanXX ΣΦΕ
|
|
|
|
|
10-25-2012, 02:41 PM
|
#12
|
|
titular
Join Date: Jan 2012
Location: Atlanta, GA
|
Quote:
Originally Posted by diablodow
Why don't you just use van deer waals equation of state and do it properly? Also
P*V = nRT which isn't the energy however you could use pressure × DV for the work. Physical chemist here.
|
Oh yeah, I could use the Van Der Waals. Didn't think of that.
Also, I went back and Googled the ideal gas law to make sure, and yeah, you're right, PV is not energy. But I found that 3/2 PV is. Is that the "D" you're talking about? |
|
|
|
|
10-25-2012, 02:59 PM
|
#13
|
|
I am a master trickster.
Join Date: Feb 2008
Location: O'Fallon, MO
|
for science
__________________
I'm well aware, I just don't care.
"Originally posted by ScottW: of course you would say that because you dress like a gay sailor and i dont"
"Originally posted by earlsweatshirt: LOL I think your brain is so ****ing hipster you don't even realize I was making fun of you for your shoes having zippers."
|
|
|
|
|
10-25-2012, 03:44 PM
|
#14
|
|
The fluffy snake player
Join Date: Nov 2006
Location: BRODAK
|
dV is what I meant as in the change in volume. The problem would be that the pressure decreases as the volume increases. For science.
__________________
MINOT MILITIA XBL: XXXmilitiamanXX ΣΦΕ
|
|
|
|
|
10-25-2012, 04:18 PM
|
#15
|
|
|
there once was a fellow named crass
whose balls were made out of brass
he'd click them together
and play stormy weather
while lightning shot out of his ***.
|
|
|
|
|
10-25-2012, 04:50 PM
|
#16
|
|
titular
Join Date: Jan 2012
Location: Atlanta, GA
|
Quote:
Originally Posted by diablodow
dV is what I meant as in the change in volume. The problem would be that the pressure decreases as the volume increases. For science.
|
Ah, I see. Yeah, too much work  .
Quote:
Originally Posted by pretzelcoatl
there once was a fellow named crass
whose balls were made out of brass
he'd click them together
and play stormy weather
while lightning shot out of his ***.
|
|
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
