This is nothing short of hella interesting. Am I digging too deep to ask what the application is for this pulse jet?
I note that pulse jet has valve of some sort that brings in fuel/air mix, closes, then ignites. So you get a pulsed effect, hence pulse jet. They say, however that this jet has a low (thrust)/(fuel consumed) ratio as compared to other sorts of jets. Hence, the question about application.
Meanwhile, yours has the word vavleless in the title. How is this possible? Are fuel and air injected instead?
From looking at the design, is this just the piping for the pulsed jet, or is this the whole unit? Where does the valve or valveless injection system reside? How is fuel/air injected? What is used to ignite the mixture? What controls everything and how? Do you have plans for benchmarking the design, or am I off point? Why is it curved? Is all of the length necessary? Why?
This is quite an interesting one to me. And while I have no doubt you could figure ways to do stuff like this, I have an interest in creating a thrust characterization system (vs. any other variable or variables) for a different project. Do you have plans for something like this in the works, or would an early effort on my part to get such operational early be of benefit somehow for your project?