Reagans Rascals
03-25-12, 03:36
I've just finished modeling a Form 1 suppressor in SolidWorks 2012 and am ready to use Flow Analysis to work out the kinks and gauge how well I can expect it to perform, basically get the most performance I can get out of it before I even begin to machine it.
In the model the Suppressor is mated to a 10.3" barrel, with all dimensions true (chamber, bore, rifling, gas port, gas tube)
I believe using the max pressure of 55,000 psi can work but I'd like to be a little more precise, so I need the starting temperature and velocity of the expanding gasses within the chamber during firing.
From what I've found online its going to be difficult to be completely precise because, as the powder burns the pressure increases to max at about .5 milliseconds after firing and then begins to fall off until exiting the barrel...
at this point in time my settings are 55,000 PSI of pressure , and around 3300 degrees Fahrenheit for temperature at the chamber.
http://www.frfrogspad.com/intballi.htm
"According to The World s Great Rifles, by Roger Ford (1998, Brown Packaging Books, Ltd., London) it is estimated that just one-fifth of one percent of the energy produced when a cartridge is fired goes to rotating the bullet, while friction in the barrel accounts for another three percent, 20 to 30 percent goes to propelling the bullet, 30 percent goes in heat to the barrel, and 40 percent goes in muzzle blast"
Basically trying to mitigate the last 40%
so if any of you have done this type of suppressor or barrel design and have any advice I'm all ears...
In the model the Suppressor is mated to a 10.3" barrel, with all dimensions true (chamber, bore, rifling, gas port, gas tube)
I believe using the max pressure of 55,000 psi can work but I'd like to be a little more precise, so I need the starting temperature and velocity of the expanding gasses within the chamber during firing.
From what I've found online its going to be difficult to be completely precise because, as the powder burns the pressure increases to max at about .5 milliseconds after firing and then begins to fall off until exiting the barrel...
at this point in time my settings are 55,000 PSI of pressure , and around 3300 degrees Fahrenheit for temperature at the chamber.
http://www.frfrogspad.com/intballi.htm
"According to The World s Great Rifles, by Roger Ford (1998, Brown Packaging Books, Ltd., London) it is estimated that just one-fifth of one percent of the energy produced when a cartridge is fired goes to rotating the bullet, while friction in the barrel accounts for another three percent, 20 to 30 percent goes to propelling the bullet, 30 percent goes in heat to the barrel, and 40 percent goes in muzzle blast"
Basically trying to mitigate the last 40%
so if any of you have done this type of suppressor or barrel design and have any advice I'm all ears...