3D Printed Vortex Rocket Engine Igniter 

Good luck with your pulsejet:-)

Haha.... it’s shame that he didn’t show the results for thrust though

I literally wanted to comment: Integza wants to know your location But I guess I was too slow...

@@soaster4568 You sure were, too bad that integza‘s rockets usually rather go boom instead of brrr

I literally thought about recommending this to Integza, but I was too slow as well.

Woah, thanks Ben. Big fan, especially your Senko Hanabi videos, really beautiful. The characteristic length was originally calculated for liquid propane injection, but like you say it’s just too long for a stable vortex, however since this is gas-gas injection the chamber could actually be even shorter. Thank you!

fuck google very good question

Man I’m running into nhil every day now

Although the design cannot scale too well it is simple enough to make many of these engines together. I am envisioning a hexagonal grid of 7 of these engines machined out of two aluminium plates. Due to the simple geometry a two-piece construction is possible with only the most basic CNC cutting processes. Oxygen distribution and the swirl nozzles can be cut as slots in the nozzle plate that is then sandwiched to the much simpler combustion chamber plate. I'm a little surprised that the oxygen is injected on the outside, I would have expected the oxygen to be tangentially injected at the rear with the fuel injected tangentially near the nozzle, but this mechanism may be relying on the centrifugal forcing of the lower-density oxygen inward through the fuel stream to provide mixing, so swapping the inputs may need a lower-density fuel like hydrogen to get this high mixing rate.

@@SamRogers Sam, you are on the same level. Good stuff.

Thank you!

It certainly is awesome your turn to do some of this #elementalmaker

You’re here too? Cool.

You better one-up him then!

@@SamRogers I'd love to see you use ceramic resin prints. You can create extremely high temp resistant prints with ceramic resin and baking the parts first

yep that is impresive. quifas and cheap iteration. That blow me aswell. Lets see if he try with ceramics aditive

I knew someone was going to bring that up thought I would look before I said something

Why not take it a step further and just order a metal 3d print?

@@lolzdatguy4987 ceramic has higher heat resistance, but isnt as strong, also im certain ceramic resin isnt as expensive as metal

@Waxoff Waxon nope. The test here is to use vortex cooling to prevent the combustion chamber from burning up, they are not testing the nozzle. Printing just the nozzle in ceramic would not cheat the combustion chamber test. The ceramic will eventually heat up enough to melt the resin that it is connected to but printing the nozzle in ceramic might still allow a longer test of the vortex cooling of the combustion chamber.

@@rawhidelamp someone already 3d printed a nozzle with ceramic filament and it is fucking awesome

Please update more videos of this!! Even if its only parts so you read the comments for better suggestions!!!

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-QFKWZHB8-FQ.html

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-1p-XWqYHez4.html

Thanks, appreciate that. Not sure about propane but we’ll see.

have you got any more videos coming soon

Except no. Film cooling never uses the oxidiser. It uses the fuel.