There was a time when I would have said yes. These days, I'm more of the opinion that the inherent randomness and turbulent mixing in a pulsejet will mean that, at best, it makes no difference.
"Theories look great on paper, until reality comes along and scribbles all over the page"
Search found 889 matches
- Mon Dec 11, 2023 8:14 am
- Forum: Valveless pulsejet forum
- Topic: From Russia without Valve
- Replies: 20
- Views: 3001
- Thu Nov 16, 2023 11:43 am
- Forum: Valveless pulsejet forum
- Topic: More free plans: 40 pound Chinese
- Replies: 192
- Views: 825225
Re: More free plans: 40 pound Chinese
Over here in communist frenchystan, if they sell it to you as propane, it's 100% propane (I checked the MSDS for my supplier, nothing special, this is supermarket forecourt stuff). There are small bottles of propane / butane mix sold for eg blowtorches, but they are marked as such. If you're running...
- Fri Nov 10, 2023 5:08 pm
- Forum: Valveless pulsejet forum
- Topic: More free plans: 40 pound Chinese
- Replies: 192
- Views: 825225
Re: More free plans: 40 pound Chinese
That doesn't seem to be close, it's not barking, popping, or howling. When you're getting close, you should be getting the sort of bangs that make you soil yourself, especially with an engine of this size. Regulators are usually a problem in terms of flow, not in terms of pressure. I think this may ...
- Sun Oct 22, 2023 8:17 am
- Forum: Valveless pulsejet forum
- Topic: From Russia without Valve
- Replies: 20
- Views: 3001
Re: From Russia without Valve
Hello Alexander. Nice looking jet, good work. Numerical modelling of pulsejets is something that's been tried quite a few times, with varying levels of success. It's enormously complex and I'm not sure it will ever be cracked 100% - I suspect most "design" is a lot of copying wa's already been done,...
- Tue Oct 17, 2023 6:08 pm
- Forum: Valveless pulsejet forum
- Topic: Reynst pot thrust
- Replies: 6
- Views: 1132
Re: Reynst pot thrust
Hey Vic. Glad to see you back, congratulations on getting out of the rat race.
Sounds like a fun experiment. Go for it!
Sounds like a fun experiment. Go for it!
- Wed Oct 04, 2023 4:50 am
- Forum: Valveless pulsejet forum
- Topic: Mike's Build Log
- Replies: 441
- Views: 331981
Re: Mike's Build Log
Mike, that's a super interesting read, and already a very cool clock.
- Sat Jun 10, 2023 6:41 am
- Forum: Valveless pulsejet forum
- Topic: University research project topic
- Replies: 3
- Views: 1399
Re: University research project topic
Hello Theo. It's an interesting field, but a fairly old one, and a lot of this stuff has already been done to death. Noise reduction has been a holy grail, but we're talking about a thermo-acoustic engine, so... There was a university team that came up with a tiny, tiny valveless jet at one point, I...
- Sun Apr 30, 2023 8:52 pm
- Forum: Off topic forum
- Topic: youtube
- Replies: 1512
- Views: 551920
Re: youtube
That's one to really annoy the neighbours with. Mind you, that's what it was developed for.
- Thu Apr 20, 2023 6:02 am
- Forum: Valved pulsejet forum
- Topic: Gerald Wiles
- Replies: 17
- Views: 4494
Re: Gerald Wiles
I researched that some time ago and I'm not sold on it yet. From what I understand, if you send them somethign to scan, you never get it back, and they give no timeframe for when it is available on their website, because it depends on their funding. Could take from a few months to a year. You can, ...
- Wed Apr 19, 2023 8:27 pm
- Forum: Valved pulsejet forum
- Topic: Gerald Wiles
- Replies: 17
- Views: 4494
Re: Gerald Wiles
Anything that remains needs to be preserved. If nothing else, at least get it scanned and onto archive.org, that way it's not lost.
- Wed Apr 19, 2023 8:18 pm
- Forum: Valved pulsejet forum
- Topic: Dyna-Jet story
- Replies: 41
- Views: 46043
Re: Dyna-Jet story
I'd be interested as well.
Sad to hear the news, though. He seemed like a really nice guy.
Sad to hear the news, though. He seemed like a really nice guy.
- Sun Feb 05, 2023 5:16 pm
- Forum: Tools and Construction
- Topic: Odds and ends
- Replies: 1850
- Views: 829619
Re: Odds and ends
That's really nice, Mark.
- Thu May 05, 2022 7:50 am
- Forum: Tools and Construction
- Topic: Odds and ends
- Replies: 1850
- Views: 829619
Re: Odds and ends
Those are absolutely mental, Mark. Proper made me grin.
- Sun Apr 17, 2022 6:25 am
- Forum: Tools and Construction
- Topic: Odds and ends
- Replies: 1850
- Views: 829619
Re: Odds and ends
That's beautifully simple, Mark.
- Wed Mar 23, 2022 4:54 pm
- Forum: Valveless pulsejet forum
- Topic: Mike's Build Log
- Replies: 441
- Views: 331981
Re: Mike's Build Log
I've already been to work! Where's my bloody video!!!?
Of course it's going to work. Plumbing issues are minor.