I started to wonder what would need to happen to a pulse jet’s geometry to have it working in a pressurized environment. That’s not pressurized feed of the intakes but a (much) higher ambient pressure for the PJ, like a PJ working in a huge pressurized air tank.
In above mentioned topic I wrote:
To understand how I got there please start here in that topic:ace_fedde wrote:Viv, and everybody else,
In the meanwhile I can’t get my thought’s off the pressurized environment for a PJ.
I might even have a purpose for it or a way to use it.
But my knowledge of pulse jets (specially in numbers) is to little to predict what’s needed to have a PJ working in a pressurized environment.
So I’ll open a thread in the valveless forum to ask for help, please join!
So my questions are:
Let’s say the environment is 4 atm (3 bar overpressure).
What would happen to the acoustics
What would happen to the (your) pulse jet’s geometry
If the geometry has to change, are there simple rules to calculate the changes
This is not a test, I really don’t know, please help!