Recent content by telepresence

Aren't we all... :smile: Thanks for your response. I do see the need for a spring there.

I really would like to hear this.

does anyone know a conversion for pressure difference to acceleration in air?

for right now I was going to be content with just a simple simulation that incorporated the heat cycle only. I was calculating the amount of energy given by combustion of a given amount of propane (based on the amount of fresh air in the chamber, somewhere between 2.15 and 9.6 [the flamability...

I'm trying to create a piece of software that can approximate the physics of a valveless pulse jet engine. What I need right now is to figure out the math behind the moving air. How would I calculate how the air from the combustion chamber after combustion (assumed for simplicity to be...

Okay, my bad. Missed that little "and" connection there.

it seems like that would reduce the power of the engine if you use the valve as part of the combustion chamber. I was seeing the combustion happening while both valves were closed to boost the pressure and ensure that the fuel burns while still inside the engine and not after it leaves. I could...

basically something like this:

Just a guess, but is this basically what you are referring to?

I'll be looking forward to that.

Shouldn't be to much worse than a petal valve, and doesn't have to bend, but thickness would need to be a consideration to balance weight and durability. Air cooling sounds interesting... Would help with the weight factor, too, I guess.

That would be great. Thanks! Thanks for pointing that out. Fixed it.

Really would like to know what you meant, there. I'm know expert, so I have no clue what could go wrong with it.

I think he may be thinking of a ball in a cage valve, where the ball is loose and can move back and forth a little, opening and closing the valve as it does so. Nice animation, by the way.

Also, the disc valve would increase the area of the front of the engine and tend to make the engine less aerodynamic, something that isn't usually desirable in a jet engine.