Reply To: Tests on Lempor Exhaust
I see where your thinking is going, Chris. My own thinking was along the lines of changing the capacity of the smokebox, the resistance of the tube bank and the capacity of the firebox. I think in your electrical terms it would be a variable voltage feeding a capacitor connected to another capacitor via a resistor. Either way it is a differential equation of second or third order. I think that the frequencies involved are way below any possible resonance, so it would reduce to a mass oscillation problem.
Oh how I wish my degree level maths was still up to standard!